Title :
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
fDate :
11/1/1993 12:00:00 AM
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 θk=0.18° at 1.65 eV and a very structured spectral dependence of θk 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;
Journal_Title :
Magnetics, IEEE Transactions on
