Magneto-optical study on diluted magnetic III-V heterostructures

Author

Fumagalli, Paul ; Munekata, Hiro ; Gambino, Richard J.

Author_Institution

IBM T.J. Watson Res. Center, Yorktown Heights, NY, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3411

Lastpage

3413

Abstract

The authors discuss polar Kerr-rotation measurements on III-V diluted magnetic semiconductors in both heterostructures (InMnAs/AlSb) and bulk films (2.5 μm InMnAs on GaAs(100)). The heterostructure shows a strong magnetooptical effect at low temperatures (5.5 K) with polar Kerr rotation θ_k=0.18° at 1.65 eV and a very structured spectral dependence of θ_k different from that in the bulk samples

Keywords

exchange interactions (electron); indium compounds; magnetic epitaxial layers; manganese compounds; semiconductor epitaxial layers; semiconductor superlattices; semimagnetic semiconductors; 5.5 K; GaAs substrate; InMnAs films; InMnAs-AlSb; MBE layers; diluted magnetic III-V heterostructures; polar Kerr-rotation measurements; semimagnetic semiconductors; strong magnetooptical effect; structured spectral dependence; III-V semiconductor materials; Iron alloys; Magnetic films; Magnetic semiconductors; Magnetooptic effects; Molecular beam epitaxial growth; Optical films; Paramagnetic materials; Semiconductor films; Substrates;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281179

Filename

281179