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

doi:10.1063/1.4869798

journal article·2014-04-01Open access

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

APL MATERIALS· Volume 2· Issue 4

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Source abstract

Abstract

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.

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Research context

OpenAlex topics: Heusler alloys: electronic and magnetic properties · Magnetic properties of thin films · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Arizona State University 1 School of Materials, , Tempe, Arizona 85287-8706, USA

Arizona State University 2 Department of Physics, , Tempe, Arizona 85287, USA

SRI International 3 , 301-64, Menlo Park, California 94025, USA

Arizona State University 4 The Biodesign Institute, , Tempe, Arizona 85287, USA

Funding

ONR

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