Ti2MnZ (Z=Al, Ga, In) compounds: Nearly spin gapless semiconductors

H. Y. Jia; X. F. Dai; L. Y. Wang; R. Liu; X. T. Wang; P. P. Li; Y. T. Cui; G. D. Liu

doi:10.1063/1.4871403

AIP Advances (Apr 2014)

Ti2MnZ (Z=Al, Ga, In) compounds: Nearly spin gapless semiconductors

H. Y. Jia,
X. F. Dai,
L. Y. Wang,
R. Liu,
X. T. Wang,
P. P. Li,
Y. T. Cui,
G. D. Liu

Affiliations

H. Y. Jia: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
X. F. Dai: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
L. Y. Wang: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
R. Liu: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
X. T. Wang: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
P. P. Li: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
Y. T. Cui: College of Physics and Information Technology, Chongqing Normal University, 401331, Chongqing, People's Republic of China
G. D. Liu: School of Material Sciences and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China

DOI: https://doi.org/10.1063/1.4871403
Journal volume & issue: Vol. 4, no. 4
pp. 047113 – 047113-6

Abstract

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Ti2MnZ (Z=Al, Ga, In) compounds with CuHg2Ti-type structure are predicted to have the different width of band gap in two spin channels and exhibit a nearly spin gapless semiconductivity. There are different origins of the band gap in spin-up and spin-down channels. The width of the band gap can be adjusted by changing the lattice parameter or doping congeners. These compounds are completely-compensated ferrimagnets with a zero magnetic moment.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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