Nonmonotonic thickness dependence of spin wave energy in ultrathin Fe films: experiment and theory

Y Zhang; P Buczek; L Sandratskii; Wen-Xin Tang; J Prokop; I Tudosa; T R F Peixoto; Kh Zakeri; J Kirschner

doi:10.1103/PhysRevB.81.094438

Nonmonotonic thickness dependence of spin wave energy in ultrathin Fe films: experiment and theory

Y Zhang, P Buczek, L Sandratskii, Wen-Xin Tang, J Prokop, I Tudosa, T R F Peixoto, Kh Zakeri, J Kirschner

Research output: Contribution to journal › Article › Research › peer-review

28 Citations (Scopus)

Abstract

High wave-vector spin waves in ultrathin Fe/W(110) films up to 20 monolayers (MLs) thick have been studied using spin-polarized electron energy-loss spectroscopy. An unusual nonmonotonous dependence of the spin wave energies on the film thickness is observed, featuring a pronounced maximum at 2 ML coverage. First-principles theoretical study reveals the origin of this behavior to be in the localization of the spin waves at the surface of the film, as well as in the properties of the interlayer exchange coupling influenced by the hybridization of the electron states of the film and substrate and by the strain.

Original language	English
Pages (from-to)	1 - 5
Number of pages	5
Journal	Physical Review B
Volume	81
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.81.094438
Publication status	Published - 2010

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10.1103/PhysRevB.81.094438

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title = "Nonmonotonic thickness dependence of spin wave energy in ultrathin Fe films: experiment and theory",

abstract = "High wave-vector spin waves in ultrathin Fe/W(110) films up to 20 monolayers (MLs) thick have been studied using spin-polarized electron energy-loss spectroscopy. An unusual nonmonotonous dependence of the spin wave energies on the film thickness is observed, featuring a pronounced maximum at 2 ML coverage. First-principles theoretical study reveals the origin of this behavior to be in the localization of the spin waves at the surface of the film, as well as in the properties of the interlayer exchange coupling influenced by the hybridization of the electron states of the film and substrate and by the strain.",

author = "Y Zhang and P Buczek and L Sandratskii and Wen-Xin Tang and J Prokop and I Tudosa and Peixoto, {T R F} and Kh Zakeri and J Kirschner",

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doi = "10.1103/PhysRevB.81.094438",

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T1 - Nonmonotonic thickness dependence of spin wave energy in ultrathin Fe films: experiment and theory

AU - Zhang, Y

AU - Buczek, P

AU - Sandratskii, L

AU - Tang, Wen-Xin

AU - Prokop, J

AU - Tudosa, I

AU - Peixoto, T R F

AU - Zakeri, Kh

AU - Kirschner, J

PY - 2010

Y1 - 2010

N2 - High wave-vector spin waves in ultrathin Fe/W(110) films up to 20 monolayers (MLs) thick have been studied using spin-polarized electron energy-loss spectroscopy. An unusual nonmonotonous dependence of the spin wave energies on the film thickness is observed, featuring a pronounced maximum at 2 ML coverage. First-principles theoretical study reveals the origin of this behavior to be in the localization of the spin waves at the surface of the film, as well as in the properties of the interlayer exchange coupling influenced by the hybridization of the electron states of the film and substrate and by the strain.

AB - High wave-vector spin waves in ultrathin Fe/W(110) films up to 20 monolayers (MLs) thick have been studied using spin-polarized electron energy-loss spectroscopy. An unusual nonmonotonous dependence of the spin wave energies on the film thickness is observed, featuring a pronounced maximum at 2 ML coverage. First-principles theoretical study reveals the origin of this behavior to be in the localization of the spin waves at the surface of the film, as well as in the properties of the interlayer exchange coupling influenced by the hybridization of the electron states of the film and substrate and by the strain.

UR - http://prb.aps.org.ezproxy.lib.monash.edu.au/pdf/PRB/v81/i9/e094438

U2 - 10.1103/PhysRevB.81.094438

DO - 10.1103/PhysRevB.81.094438

M3 - Article

SN - 1098-0121

VL - 81

SP - 1

EP - 5

JO - Physical Review B

JF - Physical Review B

IS - 9

ER -

Nonmonotonic thickness dependence of spin wave energy in ultrathin Fe films: experiment and theory

Abstract

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