Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4945600
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Funding
- South Dakota State University
- Office of the Provost and Executive Vice President for Academic Affairs, UNI
- UNI Faculty Summer Fellowship
- U.S. department of Energy, Office of Basic Energy Sciences [DOE/BES (DE-FG02-04ER46152)]
- National Science Foundation [NNCI: 1542182]
- Nebraska Research Initiative
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The increasing interest in spin-based electronics has led to a vigorous search for new materials that can provide a high degree of spin polarization in electron transport. An ideal candidate would act as an insulator for one spin channel and a conductor or semiconductor for the opposite spin channel, corresponding to the respective cases of half-metallicity and spin-gapless semiconductivity. Our first-principle electronic-structure calculations indicate that the metallic Heusler compound Ti2MnAl becomes half-metallic and spin-gapless semiconducting if half of the Al atoms are replaced by Sn and In, respectively. These electronic structures are associated with structural transitions from the regular cubic Heusler structure to the inverted cubic Heusler structure. (C) 2016 AIP Publishing LLC.
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