Strain control of magnetic anisotropy in (Ga,Mn)As microbars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10103812" target="_blank" >RIV/00216208:11320/11:10103812 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/11:00366372

Výsledek na webu

<a href="http://prb.aps.org/abstract/PRB/v83/i11/e115312" target="_blank" >http://prb.aps.org/abstract/PRB/v83/i11/e115312</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.83.115312" target="_blank" >10.1103/PhysRevB.83.115312</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Strain control of magnetic anisotropy in (Ga,Mn)As microbars

Popis výsledku v původním jazyce

We present an experimental and theoretical study of magnetocrystalline anisotropies in arrays of bars patterned lithographically into (Ga,Mn) As epilayers grown under compressive lattice strain. Structural properties of the (Ga,Mn) As microbars are investigated by high-resolution x-ray diffraction measurements. The experimental data, showing strong strain relaxation effects, are in good agreement with finite element simulations. Magnetization measurements are performed using a superconducting quantum interference device to study the control of magnetic anisotropy in (Ga,Mn) As by the lithographically induced strain relaxation of the microbars. Microscopic theoretical modeling of the anisotropy is performed based on the mean-field kinetic-exchange modelof the ferromagnetic spin-orbit coupled band structure of (Ga,Mn) As. Based on the overall agreement between experimental data and theoretical modeling, we conclude that the micropatterning induced anisotropies are of magnetocrystalline,

Název v anglickém jazyce

Strain control of magnetic anisotropy in (Ga,Mn)As microbars

Popis výsledku anglicky

We present an experimental and theoretical study of magnetocrystalline anisotropies in arrays of bars patterned lithographically into (Ga,Mn) As epilayers grown under compressive lattice strain. Structural properties of the (Ga,Mn) As microbars are investigated by high-resolution x-ray diffraction measurements. The experimental data, showing strong strain relaxation effects, are in good agreement with finite element simulations. Magnetization measurements are performed using a superconducting quantum interference device to study the control of magnetic anisotropy in (Ga,Mn) As by the lithographically induced strain relaxation of the microbars. Microscopic theoretical modeling of the anisotropy is performed based on the mean-field kinetic-exchange modelof the ferromagnetic spin-orbit coupled band structure of (Ga,Mn) As. Based on the overall agreement between experimental data and theoretical modeling, we conclude that the micropatterning induced anisotropies are of magnetocrystalline,

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review B - Condensed Matter and Materials Physics

ISSN

1098-0121

e-ISSN

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Svazek periodika

83

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000288242800006

EID výsledku v databázi Scopus

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