Excitation of plasmons in Ag/Fe/W structure by spin-polarized electrons

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Abstract

© 2015 AIP Publishing LLC. 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.
Original languageEnglish
Pages (from-to)101602-1 - 101602-5
JournalApplied Physics Letters
Volume107
Issue number10
DOIs
Publication statusPublished - 11 Sep 2015

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plasmons
excitation
electrons
incidence
energy dissipation
silver
asymmetry
electron energy
ferromagnetic films
spectroscopy
thick films
kinematics
rocks
single crystals
geometry
scattering

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@article{795a3670d8704fbda30c18bbf0ac397e,
title = "Excitation of plasmons in Ag/Fe/W structure by spin-polarized electrons",
abstract = "{\circledC} 2015 AIP Publishing LLC. 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.",
author = "Sergey Samarin and O.M. Artamonov and A.P. Baraban and Mikhail Kostylev and Paul Guagliardo and James Williams",
year = "2015",
month = "9",
day = "11",
doi = "10.1063/1.4930841",
language = "English",
volume = "107",
pages = "101602--1 -- 101602--5",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "ACOUSTICAL SOC AMER AMER INST PHYSICS",
number = "10",

}

Excitation of plasmons in Ag/Fe/W structure by spin-polarized electrons. / Samarin, Sergey; Artamonov, O.M.; Baraban, A.P.; Kostylev, Mikhail; Guagliardo, Paul; Williams, James.

In: Applied Physics Letters, Vol. 107, No. 10, 11.09.2015, p. 101602-1 - 101602-5.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Excitation of plasmons in Ag/Fe/W structure by spin-polarized electrons

AU - Samarin, Sergey

AU - Artamonov, O.M.

AU - Baraban, A.P.

AU - Kostylev, Mikhail

AU - Guagliardo, Paul

AU - Williams, James

PY - 2015/9/11

Y1 - 2015/9/11

N2 - © 2015 AIP Publishing LLC. 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.

AB - © 2015 AIP Publishing LLC. 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.

U2 - 10.1063/1.4930841

DO - 10.1063/1.4930841

M3 - Article

VL - 107

SP - 101602-1 - 101602-5

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 10

ER -