The University of Western Australia

UWA Staff Profile

Ipsum Lorem

Sergey Samarin

Dr Sergey Samarin

Principal Research Fellow
Academic Staff (Physics and Astrophysics)

Contact details
Address
Academic Staff (Physics and Astrophysics)
The University of Western Australia (M013)
35 Stirling Highway
CRAWLEY WA 6009
Australia
Phone
+61 8 6488 3479
Fax
+61 8 6488 1014
Email
sergey.samarin@uwa.edu.au
Location
Room 3.20, Physics Building, Perth campus
Qualifications
MSc PhD Dr Habil, St.Petersburg
Biography
M.Sc. (Physics), 1972. St. Petersburg State University, USSR.
Thesis title: ”Growth and ellipsometry study of thin films”.
PhD (Physics), 1976. St. Petersburg State University, USSR.
Thesis title: “Low energy electron interactions with Ta(111) surfaces”.
Doctor Habil. Science, 1995. St. Petersburg State University, Russia.
Thesis title: ”Low energy radiative-capture electron spectroscopy of metal, dielectric and semiconductor surfaces”
Key research
1992 – First to observe the radiative capture of near-zero kinetic energy electrons by solid surface.
1995 – Participation in development of a new low-energy two-electron coincidence spectroscopy, (e,2e) in reflection geometry (with Prof Kirschner and Prof. Artamonov), Max-Planck Institute, Germany. Successful application of (e,2e) technique for studying electron scattering dynamics and electronic structure of surfaces.
1996 – First to observe plasmon assisted low-energy inverse photoemission phenomena.
1997 – First to observe the emission of two electrons following the absorption of a single photon in a valence band of metal (Cu, Ni, Fe) using Synchrotron Radiation Source BESSY.
The new phenomenon of the correlated electron pairs diffraction from crystal surfaces has been observed and investigated.
1998 - First spin-resolved (e,2e) experiment on a ferromagnetic solid surface (Fe(110)) using highly polarized incident electron beam (polarization 70-80%).
2001 - The new (e,2e) instrument for Surface Science applications was designed and built up at the University of Western Australia. The mechanism of secondary emission from LiF films deposited on Si(100) substrate and band parameters of the film were studied using (e,2e) spectroscopy.
2002-2003 Spin-polarized electron source was implemented in the time-of-flight (e,2e) spectrometer at UWA. Spin-orbit interaction in inelastic scattering of spin-polarized electrons from W(110) crystal was studied.
2004-2005 Anisotropy of spin-orbit interaction in W(110) was visualized using spin-polarized (e,2e) spectroscopy. Stoner excitations in ferromagnetic layers of Fe and Co on W(110) were studied using spin-polarized EELS.
2006 - Exchange correlation and spin-orbit interaction in Co film were observed and located in energy-momentum space using spin-polarized (e,2e) spectroscopy. Influence of a Ni buffer layer on structure and magnetic properties of Co film on W(110) were investigated.
2007-2008Electronic structure of GaAs (100) and MgO(100) crystals was studied using spin-polarized two-electron spectroscopy.
2008 -2009Spin-orbit effects in thin Au film on W(110) were investigated. Two phases of thin Fe film on W(110) surface were observed and their spin-dependent electronic structures were studied. Ferromagnetism of thin Au film on Fe layer was observed.
2010-2011Observation of plasmon excitation by spin-polarized electron beam in thin Ag films on magnetic and non-magnetic substrates. Plasmon enhanced MOKE effect in magnetic nanostructures. Development of low-energy positron gun. Investigation of positron re-emission from various surfaces and various primary energies.
2012 -Spin-polarized Electron Energy Loss Spectroscopy was applied to study dependence of magnetic properties of Fe film on W(110) on film morphology and oxygen adsorption. Influence of kinematics on SPEELS was investigated. Azimuthal dependence of asymmetry of Stoner excitations in Fe film as well as azimuthal dependence of spin asymmetry of (00) diffraction beam from W(110) were studied.
Publications

1.G. Gubbiotti1, M.Kostylev2, S. Tacchi,1 M. Madami,3 G. Carlotti,3 J. Ding4, A. O. Adeyeye4, F. Zighem5, A. A. Stashkevich5, E. Ivanov2, and S.Samarin2, Collective spin waves on a nanowire array with step-modulated thickness, (to be published).
2.K. Sudarshan, P.J. Wilkie, S.N. Samarin, P. Guagliardo, V.N. Petrov, A.H. Weiss, J.F. Williams, Influence of surface conditions on thermal positron re-emission spectra from W(100), Applied Physics A, (2013) DOI 10.1007/s00339-013-7864-3.
3.S. Samarin, O. M. Artamonov, P. Guagliardo, K. Sudarshan, M. Kostylev, L. Pravica, A. Baraban, and J.F. Williams, Probing surface magnetism by spin-polarized electron spectroscopy: Fe film on W(110), Surface Science, accepted (2013).
4.Sergey Samarin, James Williams, Oleg Artamonov, Luka Pravica, Kathi Sudarshan, Paul Guagliardo, Franz Giebels, Herbert Gollisch, and Roland Feder, Intensity asymmetry of the (00) diffracted spin-polarized electron beam scattered from W(110): Azimuthal dependence, Appl. Phys. Lett. 103, 251607 (2013).
5.K. Sudarshan, V. N. Petrov, S. N. Samarin, P. Guagliardo, A. H. Weiss and J. F. Williams, Positron Re-emission Studies from W (100), Journal of Physics: Conference Series 443, 012070 (2013).
6.J. F. Williams, P. Guagliardo, K. Sudarshan, C. Ranganathaiah, G. Koutsantonis, N. Hondow and S. Samarin, Positron Annihilation Studies of Mesoporous Silica MCM-41, Journal of Physics: Conference Series 443, 012063 (2013).
7.P. Guagliardo, E. R. Vance, K. Sudarshan, J. Davis, J. F. Williams, C. Ranganathaiah1 and S. Samarin, Positron Annihilation Study of Cs-Deficient Pollucite, Journal of Physics: Conference Series 443, 012015 (2013).
8.Gubbiotti G, Tacchi S, Madami M, Carlotti G, Adeyeye A O, Samarin S N and Kostylev M, Multiplets of collective spin-wave modes during magnetization reversal in a one-dimensional magnonic crystal consisting of alternating-width nano-stripes, IEEE Trans. On Magn. 49 3089 (2013).
9.Paul Guagliardo, Keal Byrne, John Chapman, Kathi Sudarshan, Sergey Samarin, James Williams. Positron annihilation and optical studies of natural brown type I diamonds, Diamond & Related Materials 37, 37–40 (2013).
10.P. Ramya, P. Guagliardo, T. Pasang, C. Ranganathaiah, S. Samarin, and J. F. Williams, Influence of polar groups in binary polymer blends on positronium formation, Phys. Rev. E 87, 052602 (2013).
11.Nikita Kostylev, Ivan S. Maksymov, Adekunle O. Adeyeye, Sergey Samarin, Mikhail Kostylev, and Jim F. Williams, Plasmon-assisted high reflectivity and strong magneto-optical Kerr effect in permalloy gratings, Appl. Phys. Lett. 102, 121907 (2013).
12.K. L. Livesey, J. Ding, N. R. Anderson, R. E. Camley, A. O. Adeyeye, M. P. Kostylev, and S. Samarin, Resonant frequencies of a binary magnetic nanowire, Phys. Rev. B 87, 064424 (2013).
13.J.F. Williams, L. Pravica, S. Samarin, Reply to``Comment I and Comment II on Topological angular momentum in electron exchange excitation of a single atom''', Phys. Rev. A 87 (1), 016703 (2013).
14.K. Sudarshan, S.N. Samarin, P. Guagliardo, V.N. Petrov, A. H. Weiss and J.F. Williams, Angle resolved energy distribution of re-emitted positrons from W(100) single crystal, Phys. Rev. B 87, 085418 (2013).
15.S. Samarin, J.F. Williams, O. Artamonov, A. Suvorova, Spin-related Effects in Scattering of Spin-Polarized Low-energy Electrons from Magnetic and Nonmagnetic Surfaces, Journal of Physics: Conference Series 388 (13) 132026 (2012).
16.J.F. Williams, S. Samarin, L. Pravica, V Petrov, Gaussian-broadened plasmon (e, 2e) spectra from thin films, Journal of Physics: Conference Series 388 (13) 132002 (2012).
17.M. Kostylev, A.A. Stashkevich, Y. Roussigné, N.A. Grigoryeva, A.A. Mistonov, D. Menzel, N.A. Sapoletova, K.S. Napolskii, A.A. Eliseev, A.V. Lukashin, S.V. Grigoriev, and S. N. Samarin, Microwave Properties of Ni-based Ferromagnetic Inverse Opals, Phys. Rev. B 86, 184431 (2012).
18.Su, L.H., Lu, C. , He, L.Z., Zhang, L.C., Guagliardo, P., Tieu, A.K., Samarin, S.N., Williams, J.F., Li, H.J. Study of vacancy-type defects by positron annihilation in ultrafine-grained aluminum severely deformed at room and cryogenic temperatures - Acta Materialia, Volume 60 (10) 4218 (2012).
19.R. Bali, M. Kostylev, D. Tripathy, A. O. Adeyeye, and S. Samarin, High-symmetry magnonic modes in antidot lattices magnetized perpendicular to the lattice plane, Phys. Rev. B 85, 104414 (2012).
20.J Williams, V Petrov, S Kathi, S Samarin, P Guagliardo, A Weiss, S Mukherjee, Low energy positron beam studies, Bulletin of the American Physical Society 57 (2012).
21.L Pravica, JF Williams, S Samarin, D Cvejanovic, PCI induced spin-dependent effects observed in the excitation of zinc atoms, Jour. of Phys. Conference Series 388 (4) 2032 (2012).
22.J. Williams, L. Pravica, and S.N. Samarin, Topological angular momentum in electron exchange excitation of a single atom, Phys. Rev. A 85, 022701 (2012).
23.P. Guagliardo, E. R. Vance, Z. Zhang, J. Davis, J. F. Williams and S. N. Samarin, Positron Annihilation Lifetime Studies of Nb-doped TiO2, SnO2 and ZrO2, Journal of the American Ceramic Society, 95, 1727 (2012).
24.P. Guagliardo, A. J. Klemm, S. N. Samarin and J. F. Williams, Application of positron annihilation lifetime spectroscopy to nano-characterisation of polymer-modified mortars, WIT Transactions on Engineering Sciences, 72 3 (2011).
25.CS Chang, AO Adeyeye, M Kostylev, S Samarin, Enhancement of the response of non-uniform resonance modes of a nanostructure in the Picoprobe microwave-current injection ferromagnetic resonance, arXiv preprint arXiv:1102.1805 (2011).
26.C.S. Chang, M. Kostylev, A. O. Adeyeye, M. Bailleul and S. Samarin, Coplanar probe microwave current injection ferromagnetic resonance of magnetic nanostructures, EPL, 96, 57007 (2011).
27.S. Samarin, O.M. Artamonov, V.N. Petrov, M. Kostylev, L. Pravica, A. Baraban, and J.F. Williams, Influence of Ni buffer layer on spin-related electronic properties of Co film on W(110) studied by spin-polarized single- and two-electron spectroscopy, Phys. Rev. B 84, 184433 (2011).
28.B Pham, P Guagliardo, J Williams, S Samarin and S V Smith. A study of porosity of synthetic polymer nanoparticles using PALS, J. Phys.: Conf. Ser. 262, 012048 (2011).
29.P Guagliardo, J Roberts, E R Vance, R Weed, A D Sergeant, A Howie, P Wilkie, M Went, J Sullivan2, J Williams, S Samarin, S Buckman. Characterisation of metakaolin-based geopolymers using beam-based and conventional PALS, J. Phys.: Conf. Ser. 262, 012023 (2011).
30.L. Pravica, J.F. Williams, D. Cvejanovic, S. Samarin, K. Bartschat, O. Zatsarinny, A.D. Stauffer, and R. Srivastava. Unexpected effects in spin-polarized electron-impact excitation of the (3d104s5s)3S1 state of zinc, Phys. Rev. A83, 040701(R) (2011).
31.S.N. Samarin, O.M. Artamonov, A.D. Sergeant, L. Pravica, D. Cvejanovic, P. Wilkie, P. Guagliardo, A.A. Suvorova and J.F. Williams. Spin-orbit effects in the (e,2e) scattering from a W(110) surface and thin gold layer, Jour. of Phys.: Confer. Ser., 288, 012015 (2011).
32.R P McEachran, A D Stauffer, M Piwinski, L Pravica, J F Williams, D Cvejanovic and S N Samarin, Investigation of the behaviour of the Sherman function for elastic electron scattering from Kr and Xe, Jour. of Physics B: Atomic, Molecular and Optical Physics, 43, 215208 (2010).
33.S. N. Samarin, J. F. Williams, O. M. Artamonov, J. Henk, and R. Feder, Spin asymmetry in elastic scattering of low-energy electrons from ultrathin Au films on W(110), Surf. Sci., 604, 1833 (2010).
34.JF Williams, L Pravica, D Cvejanovic, S Napier, S Samarin and M Piwinski, Spin-polarised Stokes parameters of open and closed shell transitions and their resonances in zinc atoms. J Phys: Conf Ser 235, 012005 (2010).
35.S A Napier, D Cvejanović, J F Williams, L Pravica, S N Samarin, A D Sergeant, P Guagliardo and P Wilkie, Spin dependence in resonance electron scattering from zinc atoms, Jour. of Phys.: Confer. Ser., 185, 012032 (2009).
36.D Cvejanović, S A Napier, J F Williams, L Pravica, S N Samarin, A D Sergeant, P Guagliardo and P Wilkie, Post collision interaction effects in the excitation of zinc atoms, Jour. of Phys.: Confer. Ser., 185, 012005 (2009).
37.P Guagliardo, AJ Klemm, SN Samarin, JF Williams, Application of positron annihilation lifetime spectroscopy to nano-characterisation of polymer-modified mortars, Surface Effects and Contact Mechanics IX: Computational Methods and Experiments, 62, 3 (2009).
38.S.N. Samarin, O.M. Artamonov, A.D. Sergeant, L. Pravica, D. Cvejanovic, P. Wilkie, P. Guagliardo, A.A. Suvorova and J.F. Williams, On the mechanism of spin-dependent (e,2e) scattering from a ferromagnetic surface, Jour. of Phys.: Confer. Ser., 185, 012041(2009).
39.O. M. Artamonov, S. Samarin, J.F. Williams, Binary and many-particle electron-electron interaction on surfaces, Jour. Tech. Phys. (Russian), 79 (7) 108 (2009).
40.S. Samarin, O. M. Artamonov, A.D. Sergeant, J. Kirschner, and J.F. Williams, Low-energy spin-polarized two-electron spectroscopy: a powerful tool for studying exchange correlation and spin-orbit interaction on surfaces, Jour. of Phys.: Confer. Ser., 100, 072033 (2008).
41.A.D. Sergeant, S. Samarin, and J.F. Williams, Magnetic anisotropy and electronic structure of iron films on W(110) by spin-polarized two-electron spectroscopy, Surf. Sci., 601, 5783 (2007).
42.S.N. Samarin, J.F. Williams, A.D. Sergeant, O.M. Artamonov, H. Gollisch, R. Feder, Spin-dependent reflection of very-low-energy electrons from W(110). Phys. Rev. B 76, 125402 (2007).
43.J.F. Williams, S.N. Samarin, O.M. Artamonov, A.D. Sergeant, L. Pravica, D. Cvejanovic and P. Wilkie, Emission of correlated electron pairs from clean and oxygen covered W(110) upon spin-polarized electron impact. Jour. of Phys. Confer. Ser, 80, 012024 (2007).
44.J. F. Williams, D. Cvejanovic, S. Samarin, L. Pravica, S. Napier, and A. Sergeant, Angular momentum effects in electron scattering from atoms, Jour. of Phys. Confer. Ser., 80, 012023 (2007).
45.A.A Suvorova, S.N. Samarin, Secondary electron imaging of SiC-based structures in secondary electron microscope, Surface Science, 601, 4428 (2007).
46.S. N. Samarin, O. M. Artamonov, A.D. Sergeant, and J.F. Williams, Electronic structure of thin cobalt film on W(110) by spin-polarized two-electron spectroscopy, Surface Science, 601, 4343 (2007).
47.S. Samarin, O. M. Artamonov, A.D. Sergeant, A.A. Suvorova, and J.F. Williams,
Application of two-electron spectroscopy in reflection for studying electronic structure of surfaces and thin films, J. El. Spectr. and Rel. Phenomena, 161, 147 (2007).
48.S. Samarin, O. M. Artamonov, A.D. Sergeant, R. Stamps, and J.F. Williams. Energy - and momentum - resolved exchange and spin - orbit interaction in cobalt film by spin-polarized two-electron spectroscopy, Phys. Rev. Lett., 97, 096402 (2006).
49.L. Pravica, D. Cvejanovi , J. F. Williams, S. A. Napier, S. N. Samarin, and A. D. Sergeant, Compact bakable in-line valve for ultrahigh vacuum, Rev. Sci. Instrum. 77, 076104 (2006).
50.J.F. Williams, S.N. Samarin, A.D. Sergeant, A.A. Suvorova, O.M. Artamonov, Low-energy spin-polarized electron-pair (e,2e)-in-reflection from various surfaces. In: Photonic, Electronic and Atomic Collisions, pp 666-673, Eds. Pablo D. Fainstein, Marco Aurelio P. Lima, Jorge E. Miraglia, Eduardo C. Montenegro, Roberto D. Rivarola, World Scientific, ISBN 981-270-4124 (2006).
51.S. Samarin, O. M. Artamonov, A.D. Sergeant, and J.F. Williams, Anisotropy of spin-orbit interaction in W(110) by spin-polarized two-electron spectroscopy, Phys. Rev. B72, 235419 (2005).
52.S.N. Samarin, A.D. Sergeant, O.M. Artamonov, and J.F. Williams, Spin-Orbit Coupling Studied by Low Energy Spin-Polarized (e,2e) Coincidence Spectroscopy, 16 National Congress of Australian Institute of Physics, Proceedings, p.185, ISBN 0-9598064-8-2 (2005.)
53.J.F. Williams, R.W. van Boeyen, S. Samarin, Krypton fine structure in perpendicular-plane electron-impact ionization, Phys. Rev. A71, 52709-1-8 (2005).
54.S. Samarin, O. M. Artamonov, A.D. Sergeant, and J.F. Williams, Secondary emission from W(110) excited by spin-polarized electrons, Surf. Sci., 579, 166 (2005).
55.S. Samarin, O. M. Artamonov, A.D. Sergeant, and J.F. Williams, Two-electron spectroscopy versus single-electron spectroscopy for studying secondary emission from surfaces, In: Correlation Spectroscopy of Surfaces, Thin Films and Nanostructures pp 58-67 (Eds.) Berakdar, J. and Kirschner, J., WILEY-VCH, Weinheim, Germany (2004).
56.S. Samarin, O. M. Artamonov, A. D. Sergeant, J. Kirschner, A. Morozov, J. F. Williams, Spin-orbit coupling in tungsten by spin-polarized two-electron spectroscopy, Physical Review B 70, 073403 (2004).
57.S. Samarin, J. Berakdar, A. Suvorova, O. M. Artamonov, D. K. Waterhouse, J. Kirschner and J. F. Williams, Secondary-electron emission mechanism of LiF film by (e,2e) spectroscopy, Surf. Sci., 548, 187 (2004).
58.S. Samarin, O. M. Artamonov, A.D. Sergeant, A.A. Suvorova, and J.F. Williams, Measurements of insulator band parameters using combination of single-electron and two-electron spectroscopies, Solid State Communs., 129, 389 (2004).
59.A.A. Suvorova, M. Saunders, B.J. Griffin, and S.N. Samarin, Structural and compositional characterization of LiF thin films on Si, Inst. Phys. Conf. Ser. 179 (2) 57, EMAG2003, Oxford (2003).
60.O.M. Artamonov, S.N. Samarin, S Paolicelli, G. Stefani, The use of the time-energy dispersion in an electron energy analyzer, J. El. Spectr. and Rel. Phenomena, 131-132, 105 (2003).
61.S.N. Samarin, O.M. Artamonov, D.K. Waterhouse, J. Kirschner, A. Morozov, J.F. Williams, Highly efficient time-of-flight spectrometer for studying low-energy secondary emission from dielectrics: Secondary-electron emission from LiF film. Rev. Sci. Instr. 74, 1274 (2003).
62.N. Fominykh, J. Berakdar, J. Henk, S. Samarin, A. Morozov, F.U. Hillebrecht, P. Bruno and J. Kirschner, One-photon two-electron transitions at surfaces, in Handbook of Solid-State photoemission and related Methodes, Ed. W.Schattke and M. van Hove, VCH-Wiley, Berlin p. 233 (2003).
63.J. Berakdar, A. Ernst, A. Morozov, S.N. Samarin, F.U. Hillebrecht, J. Kirschner, Novel imaging technique of the magnetic Brillouin zone of thin films and magnetic surfaces, in Photonic, Electronic, and Atomic Collisions. Ed., Sheldon Datz, Rinton Press, Santa Fe, NM, USA p. 419 (2002).
64.J.F. Williams and S. Samarin. Spin-dependent interactions: a fundamental basis for magnetism and spin-electronics, The Physicist, 39 (4) 107 (2002).
65.A. Morozov, J. Berakdar, S.N. Samarin, F.U. Hillebrecht, J. Kirschner. Spin-correlation imaging of electrons in ferromagnets, Phys. Rev. B 65, 104425 (2002).
66.O.M. Artamonov, S.N. Samarin and G. Stefani, Manifestation of the final states in completely momentum resolved coincidence spectroscopy, J. El. Spectr. and Rel. Phenomena, 122 (2) 123 (2002).
67.O.M. Artamonov, S.N. Samarin and A.O. Smirnov, An application of the electron mirror in the time-of-flight spectrometer, J. El. Spectr. and Rel. Phenomena, 120 (1-3) 11 (2001).
68.S. Samarin, O. Artamonov, J. Berakdar, A. Morozov and J. Kirschner, Spin-polarized (e,2e) spectroscopy of ferromagnetic iron, Surf. Sci.. 482(Part 2) 1015 (2001).
69.O. M. Artamonov and S. N. Samarin, The Effect of Multiple Electron–Electron Scattering on the Energy Distribution of Electrons in a Correlated Pair. Technical Physics (Russian Academy of Science), 46 (9) 1179 (2001).
70.S. Samarin, J. Berakdar, O. Artamonov, H. Schwabe, and J. Kirschner, Diffraction of correlated electron pairs from crystal surfaces, Surf. Sci., 470, 141 (2000).
71.S.N. Samarin, J. Berakdar, O. Artamonov, and J. Kirschner, Visualizing spin-dependent electron collisions in ferromagnets, Phys. Rev. Lett., 85 1746 (2000).
72.S. Samarin, J. Berakdar, R. Herrmann, H. Schwabe, O. Artamonov, and J. Kirschner, Oxygen adsorption on W(001) studied by low energy (e,2e) spectroscopy, Journal de Physique IV 9, (P6) 137 (1999).
73.Herrmann R., Samarin S. N., Schwabe H., and Kirschner J., Two electron photoemission processes in the valence band of solids, Journal de Physique IV 9, (P6) 127 (1999).
74. J. Berakdar and S. Samarin, Geometrical and dynamical aspects of the correlated electron pair emission from ordered material, Journal de Physique IV 9, (P6) 133 (1999).
75.Herrmann R., Samarin S., Schwabe H., and Kirschner J., Two electron photoemission in Solids, Phys. Rev. Lett., 81, 2148 (1998).
76.Samarin S., Herrmann R., Schwabe H., Artamonov O., Application of (e,2e) spectroscopy for studying surface states of W(001), J. El. Spectr. and Rel. Phenomena, 96, 61(1998).
77. Feder R. Gollisch H. Meinert D. Scheunemann T. Artamonov OM. Samarin SN. Kirschner J. Low-energy (e,2e) spectroscopy from the W(001) surface: Experiment and theory. Phys. Rev. B 58, 16418 (1998).
78. Berakdar J. Samarin SN. Herrmann R. Kirschner J. Manifestations of electronic correlations in the diffraction of electron pairs from crystals. Phys. Rev. Lett., 81, 3535 (1998).
79.Artamonov OM. Samarin SN. Kirschner J. (e,2e) electron spectroscopy of surfaces. Applied Physics A65, 535 (1997).
80.Samarin S.N., Artamonov O.M., Schwabe H., and Kirschner J., Energy Distribution of Correlated Electron Pairs Excited by Low Energy Electrons from W(001) Measured by a Time-of-Flight (e,2e) Spectrometer. In the book : “Coincidence Studies of Electron and Photon Impact Ionization”, Plenum Publishing Corporation, N.Y., p 271 (1997).
81.Samarin SN. Yakovlev II. Editor Keller O., Optical decay of the surface and thin film plasmon modes excited by low energy electrons in silver film. Notions and Perspectives of Nonlinear Optics. Proceedings of the Third International Aalborg Summer School on Nonlinear Optics. World Scientific., p 518 (1996). Singapore.
82.Kirschner J. Artamonov OM. Samarin SN. Angle resolved energy correlated coincidence electron spectroscopy of solid surfaces. Phys. Rev. Lett., .75, 2424 (1995).
83.Artamonov OM. Samarin SN. Kirschner J. Coincidence electron spectroscopy of W(100) in the threshold-energy region. Phys. Rev. B 51, 2491 (1995).
84.Samarin SN. Dmitrieva OG. Yakovlev II. Ahmat AA. Artamonov OM Inverse-photoemission spectra of W(110), Nb(110) and Mo(110) in the low energy photon range. Surf. Sci., 307-309 (B) 969 (1994).
85.Artamonov OM. Dmitrieva OG. Samarin SN. Yakovlev II. Investigation of unoccupied electron states and determination of the electron affinity of PbS (100) by inverse photoemission spectroscopy. Fizika i Tekhnika Poluprovodnikov, vol.27, no.10, 1730, Russia (1993).
86. Samarin SN. Radiative capture of near zero kinetic energy electrons by solids. Surf. Sci., 269-270 (A) 573 (1992).
87.Dmitriev VY. Artamonov OM. Dmitrieva OG. Samarin SN. Light-induced inverse photoemission. Surf. Sci., 269-270 (A) 563 (1992).
88.Artamonov OM. Samarin SN. Measurement of the electron affinity of solids. Zhurnal Tekhnicheskoi Fiziki, vol. 61, no.10, 186, Russia (1991).
89.Artamonov OM. Dmitrieva OG. Samarin SN. Investigation of unfilled electronic states in SiO/sub 2/. Izvestiya Vysshikh Uchebnykh Zavedenii Fizika, vol.33, no.11, 26, USSR (1990).
90.Artamonov OM. Samarin SN. Inverse photoemission and measurements of electron affinity of solids. Journal of El. Spectr. & Related Phenomena, 53, no.3, 115 (1990).
91.Artamonov OM. Samarin SN. Yakovlev II. Energy threshold characteristics of electron-induced photon emission from Ag. Radiation Effects & Defects in Solids, 114, no.3, 191, UK (1990).
92.Artamonov OM. Dmitrieva OG. Samarin SN. Yakovlev II. Low-energy isochromatic spectra of silicon. Fizika i Tekhnika Poluprovodnikov, vol.22, no.4, 638, USSR (1988).
93.Artamonov OM. Belkina GM. Samarin SN. Yakovlev II. Radiative capture of slow electrons by tungsten surface. Fizika Tverdogo Tela, vol.29, no.3, 753, USSR (1987).
94.Artamonov OM. Samarin SN. Yakovlev II. Radiative capture of slow electrons by a metal surface. Fizika Tverdogo Tela, vol.28, no.8, 2536, USSR (1986).
95.O.M. Aratamonov, S.N. Samarin, N.A. Kalinenko, I.I. Yakovlev. Etude des processus d’adsorption sur la surface des metaux au moyen de l’emission electron-photonique. Proceedings of the International Conference “Electrodynamics in Interfaces. Quantum Effects in Adsorbed Layers and Thin Films”. Mezniereba (1986).
96.S. Samarin, A. Diallo, A. Kuritsin, M. Sidorenko, E. Yakimov, N. Vodianov. Affablissment du rayonnement solaire par l’atmospher tropical au cours de l’eclipse de solei du 4 december 1983. Annals de l’IPGANC, V.9, ser. A, (1983).
97.S. Samarin, M. Sow, M. Sidorenko. Determination des oligoelements dans sertains vegetaux au moyen de l’analyse spectral. Annals de l’IPGANC, V.9, ser. A, (1983).
98.Artamonov OM. Samarin SN. Yakovlev II. Characteristics of low-voltage cathodoluminescence of BaO films on tungsten and silver. Optika i Spektroskopiya, vol.54, no.3, 459, USSR (1983).
99.Artamonov OM. Samarin SN. Dimakova EB. Kuchma AE. Yakovlev II. Temperature dependence of photon emission under irradiation of a thin silver film by slow electrons. Optika i Spektroskopiya, vol.50, no.5, 911, USSR (1981).
100.Artamonov OM. Kritskii VA. Pop SS. Samarin SN. Changes in the emission spectra produced by slow electrons interacting with W, Mo, and Ta monocrystals during thermal cleaning. Zhurnal Tekhnicheskoi Fiziki, vol.50, no.7, 1574, USSR (1980).
101.Artamonov OM. Samarin SN. Yakovlev II. Emission spectrum of Ag films on W (110) under excitation by slow electrons. Pis'Ma V Zhurnal Tekhnicheskoi Fizika, vol.6, no.3, 321, USSR (1980).
102.Artamonov OM. Samarin SN. Yakovlev II. Investigation of adsorption processes on the surface of tungsten single crystals by the cathode-luminescence method. Izvestiya Akademii Nauk SSSR Seriya Fizicheskaya, vol.43, no.3, 450, USSR (1979).
103.Artamonov OM. Samarin SN. Radiative interaction of slow electrons with metal surfaces. Radiation Effects, vol.40, no.4, 201, UK (1979).
104.Artamonov OM. Samarin SN. Radiative interaction of slow electrons with the surface of Ta (111). Vestnik Leningradskogo Universiteta, Fizika i Khimiya, no.4, 50, USSR (1977).
105.Artamonov OM. Samarin SN. Luminescence from the (111) face of a Ta single crystal bombarded with slow electrons. Optika i Spektroskopiya, vol.40, no.2, 316, USSR (1976).
Roles, responsibilities and expertise


Research expertise.
Surface science: surface electronic structure, adsorption phenomena, thin film growth, electron scattering dynamics.
Electron spectroscopy techniques: electron energy loss spectroscopy; Auger electron spectroscopy; spin-polarized two-electron spectroscopy; photoelectron spectroscopy.
Ultra-high vacuum systems.
Magnetic nanostructures.
Electronic structure of nano-systems and thin films.
Future research
PROJECT TITLE: Complete scattering experiment on surfaces for studying electron entanglement.
AIMS AND BACKGROUND
Quantum entanglement, also called the quantum non-local connection, is a property of the quantum mechanical system containing two or more objects, which are linked in a way that one cannot adequately describe the quantum state of a constituent of the system without full mention of its counterparts, even if the individual objects are separated. This property, also known as “quantum correlation”, became the most discussed issue in quantum physics since the publication by A. Einstein, B. Podolsky, and N. Rosen (EPR) of their paper “Can Quantum-Mechanical Description of Physical Reality Be Considered Complete' ?” [Einstein 1935].
Entanglement is at the heart of the much discussed quantum information science and has practical relevance for the understanding of correlation-driven phenomena, transport properties, and phase transitions in composite quantum systems. Entanglement is understood today as one of the quantum world’s most important and glaring properties [Malte C Tichy 2011]. It contradicts the intuitive assumption that any physical object has distinctive individual properties that completely define it as an independent entity and that the results of a measurement on one system are independent of any operations performed on another space-like separate system, an attitude also known as local realism.
We aim in our project to create, analyse and manipulate two-electron entangled states generated by an electron impact from a solid surface. Tuning the experimental arrangement it is possible to pick up only the entangled electrons and perform operations that depend solely on their quantum entanglement in a similar way as has done for photons. To the best of our knowledge it would be the very first time that such an experiment is performed despite the enormous efforts world-wide to generate and manipulate entangled states. The basis for the successful completion of this goal is our previous experiments on spin-resolved detection of single electron pair from ferromagnets, an experiment widely acknowledged as one of the toughest in experimental solid state physics, due to the extremely long acquisition time under ultrahigh vacuum. The experiment is backed by theory that also was able in the past to simulate electron pair emission from surfaces. The novel aspect of this project is our mission to filter and manipulate only those electron pairs that are entangled in the sense of quantum information.
Aim of the project in details:
Investigate entanglement of correlated electron pairs generated in a complete spin-polarized scattering experiment from various solid surfaces. To reach this ultimate aim we are planning to perform the following experiments:

systematic measurements of the change of electron spin while scattering of the electrons from various (magnetic, nonmagnetic, semiconductor) surfaces; we’ll compare how the polarization of the incident electron beam changes in elastic and inelastic electron scattering with energy losses for individual and collective excitations;
calibrate “spin rotator” to enable the manipulation of the spin state of the flying electrons by applying proper magnetic field;
analyse correlated electron pairs in coincidence experiment;
compare the generation of entangled electron pairs in a scattering experiment from various surfaces:
- creation of electron pairs by scattering from non-localised valence electrons of a ferromagnetic metals (exchange effect is used to control spin entanglement);
- creation of electron pairs by scattering from high-z nonmagnetic metals (spin-orbit interaction is used to control spin entanglement);
- pair generation from localised electronic states of adsorbed atoms and molecules.
Background is considered for the above-mentioned aim and then for the relationship of proposal to work in the field and international progress.
Quantum information uses quantum mechanical laws for its generation, coding, processing, etc. Quantum information (computing and communication) in analogy to classical computing needs “bits”. “Bit” in quantum information is a quantum system, which has, at least, one observable requiring two-, or higher-, dimensional space for its characterization. It is called “qubit” [Schumacher 1995]. Quantum communication seems to be more feasible than quantum computing with the presently available technology. One of the fundamental resources for many applications in quantum communication are pairs of entangled particles (or qubits) [Ekert 1991]. Well-known examples of maximally entangled states of two qubits are the spin singlet and triplet (with mz = 0) of two spin-1/2 particles.
In quantum optics, the non-locality and completeness of quantum mechanics and quantum teleportation with photons have been investigated theoretical and experimentally [Aspect 1982; Bouwmeester 1997; Boschi 1998], while so far, no corresponding experiments for electrons (especially in a solid state environment) are reported. This reflects the fact that it is very hard to produce and to measure entanglement of electrons.
Although a photon is an excellent carrier of information, it is, however, not suitable for its long-term storage. Also, a photon is immediately destroyed as soon as one tries to detect it. For these and other similar reasons, it will certainly be desirable to produce entangled states of two qubits (qudits) made of electrons, atoms, molecules, etc..
Most of the prototypes of quantum computers are based on the “electronic qubits” – coupled two-electron states in a solid matrix, i.e. electrons in quantum dots [Burkard, 2001].

Funding received
ARC Discovery Project 2011-2014. “Complex magnetic structures for microwave, logic and memory applications” M. Kostylev, Rantej Bali, S N Samarin, R L Stamps, SO Demokritov, G Carlotti, Adekunle O Adeyeye, O Serha ($ 680,000).

ARC Discovery Project 2009-2011. “Spin dynamics in magnetic nanostructures by spin polarized single and two electron spectroscopy JF Williams, S Samarin, A Suvorova, J Berakdar ($300,000).

ARC Centre of Excellence: 2005- 2013. “Centre for Antimatter-Matter Studies” S Buckman, J Sullivan, J Lower, R McEachran, Igor Bray, A Stelbovics, D Fursa, M Brunger, J Teubner, B Lohmann, JF Williams, S Samarin, S Smith, L Vance, $ 7 000,000 ($2 000, 000 to UWA).

ARC Discovery Project 2005-2008. “Visualizing Spin-Related Properties of Functional Nanostructures (for Spintronics)” JF Williams, S Samarin, J Kirschner, J Berakdar, M Donath. ($360,000).

ARC Discovery Project: 2002-2005. “Spin-dependent interactions: a fundamental basis for spin-electronics” JF Williams, S Samarin, J Kirschner ($370,000).

ARC LIEF 2008. “Comprehensive Analysis Facilities for Thin Films and Surfaces” M Bilek, C Ling, P Munroe, M Stevens-Kalceff, D Riley, A Holland, JF Williams, D McKenzie, B Kennedy, M Hoffman, N Valanoor, D McCulloch, M Green, C Kepert, K Kalantar-zadeh, T Maschmeyer, G Conibeer, K Gross, R Burford, A Mitchell, M Austin, S Samarin $780,000 ($70,406 to UWA).

UWA Research grant 2007. S Samarin, “Magnetic Dichroism of Plasmon Excitation in Silver Nanostructures on Ferromagnetic Substrate” ($15,500)
UWA research grant 2005 S Samarin, “Light-induced Inverse Photoemission Spectroscopy for Studying Unoccupied Quantum-well States of Low Dimensional Systems” $10,000.

UWA research grant 2003 S Samarin, “Spin-Reorientation Transitions in Ultrathin Magnetic Layers by Surface Magneto-Optic Kerr Effect” $9,500

UWA research grant 2001 S Samarin, “Spin resolved, low energy reflection (e,2e) spectroscopy of surface magnetism” $12,300.
Languages
English, French, Russian (native)
Previous positions
1993 – 2000Visiting Scientist, Max-Planck Institute for Microstructure Physics, Prof. J. Kirschner’s Experimental Department, Halle, Germany.
1985 - 1995 Senior Researcher, St. Petersburg State University.
1980 - 1984Senior Lecturer, Faculty of Science, University of Conakry, Guinea.
1976 – 1984Researcher, Senior Researcher, St. Petersburg State University.
Patents
Patent N 1705914 “Device for measuring an electron affinity of solid surfaces”.
Teaching
Undergraduate course for 3-d year students "Solid State Physics".

Undergraduate supervision:

4 vacation scholarship students (co-supervision with J. Williams):

-Kristen Feher (2001) assisted with the design, manufacture, installation and calibration of magnetic field “Helmholtz coils” to annul local magnetic fields within the laboratory. The project was unique because the coils were rectangular and located in three pairs along the corner edges of the laboratory. Annulment to about 20 milligauss was achieved.

-Dane Lance (2002) was involved in the construction of the spin-polarized two-electron spectrometer (that is a unique instrument, now operating and producing world-class experimental results). He demonstrated outstanding capabilities and was selected as one of few Australian students to attend Summer Scholl in Cambridge.

-Ranga Muhandiramge (2003) was working in the Centre for Atomic, Molecular and Surface Physics for two months during summer. He was involved in the construction of the vacuum system, calibration of the acquisition system and data processing. He demonstrated outstanding results in computing and data processing and was selected as one of few Australian students to attend Summer Scholl in Cambridge.

-Joel Boesfeld (2009) was working in CAMSP on revival of the ellipsometer together with the Endeavour Fellow visitor Debashi De. He demonstrated outstanding results in measurements and processing ellipsometric data of multi-layered structures.

-Nikita Kostylev (2011) studied optical properties of multi-layered structures using variable angle spectroscopic ellipsometer.

-Samuel Moore (2012) was studying “gold black” films. He prepared himself these films by means of thermal deposition in special conditions, and then studied their optical properties.

-Adam J. Chambost (2013) studied deposition of metal films by thermal evaporation.

-Winston Kint (2013) used ellipsometer for studying thin metallic films on glass and silicon oxide.

-Richard Bentley-Moyse (2013) was studying deposition of metal films on silicon oxide and characterization of the films using optical methods.

Nanotechnology SCIE3336/7, 3-d year students (co-supervision with J. Williams and A. Suvorova):

- Paul Reid (2009), Project: “Magnetic surfaces and thin films for spintronics”
- Qian Ting Say (2009), Project: “Magnetic surfaces and thin films for spintronics”.

Postgraduate supervision (co-supervision with J.F. Williams):

Honours (UWA):

Stuart A. Napier completed (2004 - 2005). Australian Academy of Science PhD delegate to the 2008 Meeting of Noble Laureates, Lindau, Germany.

Paul R Guagliardo completed (2006 - 2007). Muriel & Colin Ramm Medal in Experimental Physics, March 2007.

Alexandra Howie, 2009 – 2010 completed.

Nikita Kostylev, 2011-2012. Muriel & Colin Ramm Medal in Experimental Physics, March 2012.

Samuel Moore, 2012 completed.

Master of Science (UWA):

Peter J. Wilkie (completed 2008).

PhD (UWA):

Antony Sergeant (completed 2007) - informal contribution to the PhD project supervision (supervised by Jim Williams).
Paul R Guagliardo 2011 – completed (co-supervisor with Jim Williams).
Peter J. Wilkie 2008 - current at (co-supervisor with Jim Williams).
Aleksander Semenov, 2009 – retired 2010.
Current projects
ARC Center of Excellence for Antimatter-Matter Studies
Research profile
Research profile and publications
 

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