Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3625946
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Funding
- National Natural Science Foundation of China [51071172, 51021061, 51025103]
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The electronic structures of tetragonally distorted half-Heusler compound LaPtBi in the C1(b) structure are investigated in the framework of density functional theory using the full potential linearized augmented plane with local spin density approximation method. The calculation results show that both the band structures and the Fermi level can be tuned by using either compressive or tensile in-plane strain. A large bulk band gap of 0.3 eV can be induced through the application of a compressive in-pane strain in LaPtBi with the assumption of a relaxed volume of the unit cell. Our results could serve as a guidance to realize topological insulators in half-Heusler compounds by strain engineering. (C) 2011 American Institute of Physics. [doi:10.1063/1.3625946]
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