Fabrication of highly spin-polarized Co2FeAl0.5Si0.5 thin-films
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 01, 2014
- Source ID
- 10.1063/1.4869798
Entities
People
- C. Youngbull
- J. A. Gifford
- L. Yu
- M. Vahidi
- Mingxiong Huang
- N. Newman
- S. K. Zhang
- Siddhartha Krishnamurthy
- Timothy Y. Chen
- Zhi-Gang
Organizations
- Arizona State University
- Office of Naval Research
- SRI International