Control of the magnetic anisotropy of epitaxially grown MnAs/GaAs ferromagnet-semiconductor hybrid superlattices

J. H. Song; J. J. Lee; Y. Cui; J. B. Ketterson; Sunglae Cho

doi:10.1063/1.1813630

Control of the magnetic anisotropy of epitaxially grown MnAs/GaAs ferromagnet-semiconductor hybrid superlattices

J. H. Song^*, J. J. Lee, Y. Cui, J. B. Ketterson, Sunglae Cho

^*Corresponding author for this work

Physics and Astronomy

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

10 Scopus citations

Abstract

Epitaxial hybrid structures of the ferromagnet-semiconductor superlattice MnAs/GaAs were grown on GaAs(001) substrates by molecular-beam epitaxy and the dependence of the magnetic properties on the growth temperature and the periodicity were characterized. The magnetic anisotropy is strongly dependent on the surface reconstruction of GaAs(001) substrates. The increase of the periodicity from 5 nm/5 nm to 10 nm/10 nm also changes the magnetic anisotropy. These results demonstrate that the surface reconstruction of the substrate and the periodicity determine the magnetic structure of the MnAs/GaAs superlattices.

Original language	English (US)
Pages (from-to)	4079-4081
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	18
DOIs	https://doi.org/10.1063/1.1813630
State	Published - Nov 1 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1813630

Cite this

@article{cdb20a9103d04b7a9236775d696a4f0d,

title = "Control of the magnetic anisotropy of epitaxially grown MnAs/GaAs ferromagnet-semiconductor hybrid superlattices",

abstract = "Epitaxial hybrid structures of the ferromagnet-semiconductor superlattice MnAs/GaAs were grown on GaAs(001) substrates by molecular-beam epitaxy and the dependence of the magnetic properties on the growth temperature and the periodicity were characterized. The magnetic anisotropy is strongly dependent on the surface reconstruction of GaAs(001) substrates. The increase of the periodicity from 5 nm/5 nm to 10 nm/10 nm also changes the magnetic anisotropy. These results demonstrate that the surface reconstruction of the substrate and the periodicity determine the magnetic structure of the MnAs/GaAs superlattices.",

author = "Song, {J. H.} and Lee, {J. J.} and Y. Cui and Ketterson, {J. B.} and Sunglae Cho",

note = "Funding Information: Research at Northwestern University was supported by the AFOSR Chalcopyrite MURI Grant No. F49620-01-1-0428, DARPA Grant No. N00014-02-1-0887, and NSF Grant No. ECS-0224210; use was made of the facilities operated by the Northwestern MERSEC supported by the National Science Foundation. One of the authors (S. C.) acknowledges the support from KOSEF via the electron Spin Science Center at POSTECH. ",

year = "2004",

month = nov,

day = "1",

doi = "10.1063/1.1813630",

language = "English (US)",

volume = "85",

pages = "4079--4081",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "18",

}

TY - JOUR

T1 - Control of the magnetic anisotropy of epitaxially grown MnAs/GaAs ferromagnet-semiconductor hybrid superlattices

AU - Song, J. H.

AU - Lee, J. J.

AU - Cui, Y.

AU - Ketterson, J. B.

AU - Cho, Sunglae

N1 - Funding Information: Research at Northwestern University was supported by the AFOSR Chalcopyrite MURI Grant No. F49620-01-1-0428, DARPA Grant No. N00014-02-1-0887, and NSF Grant No. ECS-0224210; use was made of the facilities operated by the Northwestern MERSEC supported by the National Science Foundation. One of the authors (S. C.) acknowledges the support from KOSEF via the electron Spin Science Center at POSTECH.

PY - 2004/11/1

Y1 - 2004/11/1

N2 - Epitaxial hybrid structures of the ferromagnet-semiconductor superlattice MnAs/GaAs were grown on GaAs(001) substrates by molecular-beam epitaxy and the dependence of the magnetic properties on the growth temperature and the periodicity were characterized. The magnetic anisotropy is strongly dependent on the surface reconstruction of GaAs(001) substrates. The increase of the periodicity from 5 nm/5 nm to 10 nm/10 nm also changes the magnetic anisotropy. These results demonstrate that the surface reconstruction of the substrate and the periodicity determine the magnetic structure of the MnAs/GaAs superlattices.

AB - Epitaxial hybrid structures of the ferromagnet-semiconductor superlattice MnAs/GaAs were grown on GaAs(001) substrates by molecular-beam epitaxy and the dependence of the magnetic properties on the growth temperature and the periodicity were characterized. The magnetic anisotropy is strongly dependent on the surface reconstruction of GaAs(001) substrates. The increase of the periodicity from 5 nm/5 nm to 10 nm/10 nm also changes the magnetic anisotropy. These results demonstrate that the surface reconstruction of the substrate and the periodicity determine the magnetic structure of the MnAs/GaAs superlattices.

UR - http://www.scopus.com/inward/record.url?scp=10044223511&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10044223511&partnerID=8YFLogxK

U2 - 10.1063/1.1813630

DO - 10.1063/1.1813630

M3 - Article

AN - SCOPUS:10044223511

SN - 0003-6951

VL - 85

SP - 4079

EP - 4081

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

ER -

Control of the magnetic anisotropy of epitaxially grown MnAs/GaAs ferromagnet-semiconductor hybrid superlattices

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this