Spin polarisation and anomalous Hall effect in NiMnSb films
Ημερομηνία
2004Συγγραφέας
Branford, W. R.Roy, S. B.
Clowes, S. K.
Miyoshi, Y.
Bugoslavsky, Y. V.
Gardelis, S.
Giapintzakis, John
Cohen, L. F.
Source
Journal of Magnetism and Magnetic MaterialsVolume
272-276Pages
e1399-e1401Google Scholar check
Keyword(s):
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
NiMnSb has attracted a great deal of interest as a spin injector/detector in spintronic devices because it has a Curie temperature of 728 K and is predicted to be half-metallic (100% spin polarized). NiMnSb has been reported to have greatly reduced surface polarization, and to lose its half metallicity above 80 K. Here we report the investigation of the surface polarisation and electronic structure of NiMnSb by measurement of the transport spin polarization using point contact Andreev reflection spectroscopy, and anomalous Hall effect in thin films on Si(00 1). A comparison to bulk properties is made. © 2003 Elsevier B.V. All rights reserved.