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Title: Enhancement of elastic-light scattering due to the magnetization instability in ultrathin magnetic films

Abstract

We have observed magnetic-field-dependent enhancements as large as a factor of 20 of the intensity of [ital elastic]-light scattering, from ultrathin magnetic films with perpendicular magnetic anisotropy. High-resolution Brillouin spectroscopy shows that this enhancement reaches its maximum at a critical field (H[sub crit]) where the magnetization starts to incline toward out-of-plane due to the perpendicular anisotropy. We attribute this effect to the microscopic instability due to random fluctuations of the magnetization near H[sub crit]. [copyright] [ital 1999] [ital The American Physical Society]

Authors:
; ;  [1]
  1. (Optical Sciences Center and Surface Science Division of Arizona Research Laboratories, University of Arizona, Tucson, Arizona 85721 (United States))
Publication Date:
OSTI Identifier:
6199006
Alternate Identifier(s):
OSTI ID: 6199006
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 60:9; Journal ID: ISSN 0163-1829
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; BRILLOUIN EFFECT; COBALT; CRITICAL FIELD; ELASTIC SCATTERING; FLUCTUATIONS; LIGHT SCATTERING; MAGNETIZATION; MAGNETO-OPTICAL EFFECTS; THIN FILMS; COHERENT SCATTERING; ELEMENTS; FILMS; MAGNETIC FIELDS; METALS; SCATTERING; TRANSITION ELEMENTS; VARIATIONS 360104* -- Metals & Alloys-- Physical Properties

Citation Formats

Murayama, A., Hyomi, K., and Falco, C.M. Enhancement of elastic-light scattering due to the magnetization instability in ultrathin magnetic films. United States: N. p., 1999. Web. doi:10.1103/PhysRevB.60.6281.
Murayama, A., Hyomi, K., & Falco, C.M. Enhancement of elastic-light scattering due to the magnetization instability in ultrathin magnetic films. United States. doi:10.1103/PhysRevB.60.6281.
Murayama, A., Hyomi, K., and Falco, C.M. Wed . "Enhancement of elastic-light scattering due to the magnetization instability in ultrathin magnetic films". United States. doi:10.1103/PhysRevB.60.6281.
@article{osti_6199006,
title = {Enhancement of elastic-light scattering due to the magnetization instability in ultrathin magnetic films},
author = {Murayama, A. and Hyomi, K. and Falco, C.M.},
abstractNote = {We have observed magnetic-field-dependent enhancements as large as a factor of 20 of the intensity of [ital elastic]-light scattering, from ultrathin magnetic films with perpendicular magnetic anisotropy. High-resolution Brillouin spectroscopy shows that this enhancement reaches its maximum at a critical field (H[sub crit]) where the magnetization starts to incline toward out-of-plane due to the perpendicular anisotropy. We attribute this effect to the microscopic instability due to random fluctuations of the magnetization near H[sub crit]. [copyright] [ital 1999] [ital The American Physical Society]},
doi = {10.1103/PhysRevB.60.6281},
journal = {Physical Review, B: Condensed Matter},
issn = {0163-1829},
number = ,
volume = 60:9,
place = {United States},
year = {1999},
month = {9}
}