Spatial constraints on the source of uniaxial anisotropy in (Ga,Mn)As films

G. Woltersdorf; J. Stigloher; H. S. Körner; F. Hoffmann; M. Kiessling; V. Novak; J. Y. Chauleau; C. H. Back

doi:10.1088/0022-3727/47/19/195001

Spatial constraints on the source of uniaxial anisotropy in (Ga,Mn)As films

G. Woltersdorf, J. Stigloher, H. S. Körner, F. Hoffmann, M. Kiessling, V. Novak, J. Y. Chauleau, C. H. Back

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

Abstract

We use time-resolved Kerr microscopy to perform ferromagnetic resonance experiments on nanostructured elements to show that strain is not the origin of the strong uniaxial in-plane anisotropy observed in (Ga,Mn)As films. From local angular dependent ferromagnetic resonance measurements we are able to extract the anisotropy constants. We observe no change of the strong uniaxial anisotropy in disks as small as 200nm.

Original language	English
Article number	195001
Journal	Journal of Physics D: Applied Physics
Volume	47
Issue number	19
DOIs	https://doi.org/10.1088/0022-3727/47/19/195001
State	Published - 14 May 2014
Externally published	Yes

Keywords

anisotropy
diluted magnetic semiconductor
ferromagnetic resonance

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10.1088/0022-3727/47/19/195001

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abstract = "We use time-resolved Kerr microscopy to perform ferromagnetic resonance experiments on nanostructured elements to show that strain is not the origin of the strong uniaxial in-plane anisotropy observed in (Ga,Mn)As films. From local angular dependent ferromagnetic resonance measurements we are able to extract the anisotropy constants. We observe no change of the strong uniaxial anisotropy in disks as small as 200nm.",

keywords = "anisotropy, diluted magnetic semiconductor, ferromagnetic resonance",

author = "G. Woltersdorf and J. Stigloher and K{\"o}rner, {H. S.} and F. Hoffmann and M. Kiessling and V. Novak and Chauleau, {J. Y.} and Back, {C. H.}",

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T1 - Spatial constraints on the source of uniaxial anisotropy in (Ga,Mn)As films

AU - Woltersdorf, G.

AU - Stigloher, J.

AU - Körner, H. S.

AU - Hoffmann, F.

AU - Kiessling, M.

AU - Novak, V.

AU - Chauleau, J. Y.

AU - Back, C. H.

PY - 2014/5/14

Y1 - 2014/5/14

N2 - We use time-resolved Kerr microscopy to perform ferromagnetic resonance experiments on nanostructured elements to show that strain is not the origin of the strong uniaxial in-plane anisotropy observed in (Ga,Mn)As films. From local angular dependent ferromagnetic resonance measurements we are able to extract the anisotropy constants. We observe no change of the strong uniaxial anisotropy in disks as small as 200nm.

AB - We use time-resolved Kerr microscopy to perform ferromagnetic resonance experiments on nanostructured elements to show that strain is not the origin of the strong uniaxial in-plane anisotropy observed in (Ga,Mn)As films. From local angular dependent ferromagnetic resonance measurements we are able to extract the anisotropy constants. We observe no change of the strong uniaxial anisotropy in disks as small as 200nm.

KW - anisotropy

KW - diluted magnetic semiconductor

KW - ferromagnetic resonance

UR - http://www.scopus.com/inward/record.url?scp=84899520346&partnerID=8YFLogxK

U2 - 10.1088/0022-3727/47/19/195001

DO - 10.1088/0022-3727/47/19/195001

M3 - Article

AN - SCOPUS:84899520346

SN - 0022-3727

VL - 47

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 19

M1 - 195001

ER -

Spatial constraints on the source of uniaxial anisotropy in (Ga,Mn)As films

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Keywords

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