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Author Samarin, Sergey N. ♦ Kostylev, Mikhail ♦ Williams, J. F. ♦ Artamonov, Oleg M. ♦ Baraban, Alexander P. ♦ Guagliardo, Paul
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ASYMMETRY ♦ DEPOSITION ♦ DEPOSITS ♦ DETECTION ♦ ELECTRONS ♦ ENERGY-LOSS SPECTROSCOPY ♦ EXCITATION ♦ FILMS ♦ GEOMETRY ♦ INCIDENCE ANGLE ♦ INTERFACES ♦ LAYERS ♦ MONOCRYSTALS ♦ PLASMONS ♦ SCATTERING ♦ SILVER ♦ SPECTRA ♦ SPIN ♦ SPIN ORIENTATION ♦ SURFACES
Abstract Using Spin-polarized Electron-Energy Loss Spectroscopy (SPEELS), the plasmon excitations were probed in a few atomic layers thick Ag film deposited on an Fe layer or on a single crystal of W(110). The measurements were performed at two specular geometries with either a 25° or 72° angle of incidence. On a clean Fe layer (10 atomic layers thick), Stoner excitation asymmetry was observed, as expected. Deposition of a silver film on top of the Fe layer dramatically changed the asymmetry of the SPEELS spectra. The spin-effect depends on the kinematics of the scattering: angles of incidence and detection. The spin-dependence of the plasmon excitations in the silver film on the W(110) surface and on the ferromagnetic Fe film is suggested to arise from the spin-active Ag/W or Ag/Fe interfaces.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-07
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 10


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