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Antiferromagnetic exchange bias of a ferromagnetic semiconductor by a ferromagnetic metal

Journal Article · · Physical Review B
OSTI ID:983045
We demonstrate an exchange bias in (Ga,Mn)As induced by antiferromagnetic coupling to a thin overlayer of Fe. Bias fields of up to 240 Oe are observed. Using element-specific x-ray magnetic circular dichroism measurements, we distinguish an interface layer that is strongly pinned antiferromagnetically to the Fe. The interface layer remains polarized at room temperature.
Research Organization:
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Organization:
Advanced Light Source Division
DOE Contract Number:
AC02-05CH11231
OSTI ID:
983045
Report Number(s):
LBNL-3191E
Journal Information:
Physical Review B, Journal Name: Physical Review B; ISSN 1098-0121
Country of Publication:
United States
Language:
English

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