ErAs epitaxial layers buried in GaAs: Magnetotransport and spin-disorder scattering
- 8 May 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (19) , 2309-2312
- https://doi.org/10.1103/physrevlett.62.2309
Abstract
A detailed magnetotransport study of novel heterostructures comprised of epitaxial layers of semimetallic ErAs buried inside GaAs displays a cusplike anomaly in the magnetoresistance that is caused by spin-disorder scattering at the antiferromagnetic-paramagnetic phase boundary. The relatively low carrier concentration spares the Fermi surface from being cut by the broken symmetry and only spin disorder contributes to the anomaly.Keywords
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