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
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.
|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|
|Publisher:||American Physical Society|