APL Materials
(Apr 2014)
Fabrication of highly spin-polarized Co2FeAl0.5Si0.5 thin-films
M. Vahidi,
J. A. Gifford,
S. K. Zhang,
S. Krishnamurthy,
Z. G. Yu,
L. Yu,
M. Huang,
C. Youngbull,
T. Y. Chen,
N. Newman
Affiliations
M. Vahidi
School of Materials, Arizona State University, Tempe, Arizona 85287-8706, USA
J. A. Gifford
Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
S. K. Zhang
School of Materials, Arizona State University, Tempe, Arizona 85287-8706, USA
S. Krishnamurthy
SRI International, 301-64, Menlo Park, California 94025, USA
Z. G. Yu
SRI International, 301-64, Menlo Park, California 94025, USA
L. Yu
School of Materials, Arizona State University, Tempe, Arizona 85287-8706, USA
M. Huang
School of Materials, Arizona State University, Tempe, Arizona 85287-8706, USA
C. Youngbull
The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
T. Y. Chen
Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
N. Newman
School of Materials, Arizona State University, Tempe, Arizona 85287-8706, USA
DOI
https://doi.org/10.1063/1.4869798
Journal volume & issue
Vol. 2,
no. 4
Abstract
Read online
Ferromagnetic Heusler Co2FeAl0.5Si0.5 epitaxial thin-films have been fabricated in the L21 structure with saturation magnetizations over 1200 emu/cm3. Andreev reflection measurements show that the spin polarization is as high as 80% in samples sputtered on unheated MgO (100) substrates and annealed at high temperatures. However, the spin polarization is considerably smaller in samples deposited on heated substrates.
Published in APL Materials
ISSN
2166-532X (Online)
Publisher
AIP Publishing LLC
Country of publisher
United States
LCC subjects
Technology: Chemical technology: Biotechnology
Science: Physics
Website
http://aplmaterials.aip.org
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