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Direct observation of a bulklike spin moment at the Fe/GaAs(100)-4x6 interface

Claydon, J.S., Xu, Y.B., Tselepi, M., Bland, J.A.C. and van der Laan, G. (2004) Direct observation of a bulklike spin moment at the Fe/GaAs(100)-4x6 interface. Physical Review Letters, 93 (3). 0372061-0372064. ISSN 0031-9007

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We have used x-ray magnetic circular dichroism, which offers a unique capability to give element specific information at submonolayer sensitivity, to determine the spin and orbital magnetic moments at the Fe/GaAs(100) interface. The wedge samples, grown by molecular beam epitaxy at room temperature, consisted of 0.25–1 monolayer (ML) Fe on GaAs(100)-4×6 capped with 9 ML Co and have shown Fe spin moments of (1.84–1.96)μB and a large orbital enhancement. Our results demonstrate unambiguously that the Fe/GaAs(100)-4×6 interface is ferromagnetic with a bulklike spin moment, which is highly promising for spintronics applications.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Electronics (York)
Depositing User: York RAE Import
Date Deposited: 24 Feb 2009 16:02
Last Modified: 24 Feb 2009 16:02
Published Version: http://dx.doi.org/10.1103/PhysRevLett.93.037206
Status: Published
Publisher: American Physical Society
Identification Number: 10.1103/PhysRevLett.93.037206
URI: http://eprints.whiterose.ac.uk/id/eprint/7233

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