Journal ArticleDOI
Electrical and optical properties of some M2v−bN3vi−b semiconductors
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In this article, a number of compounds of V−B and VI−B elements, with chemical formula M 2 v − b N 3 vi − b been synthesized as single crystals of fairly good purity.About:
This article is published in Journal of Physics and Chemistry of Solids.The article was published on 1957-01-01. It has received 375 citations till now. The article focuses on the topics: Seebeck coefficient & Atomic number.read more
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Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface
TL;DR: In this article, first-principles electronic structure calculations of the layered, stoichiometric crystals Sb2Te3, Bi2Se3, SbSe3 and BiSe3 were performed.
Journal ArticleDOI
Observation of a large-gap topological-insulator class with a single Dirac cone on the surface
Yuqi Xia,Dong Qian,Dong Qian,David Hsieh,Lewis Wray,Arijeet Pal,Hsin Lin,Arun Bansil,D. Grauer,Yew San Hor,Robert J. Cava,M. Z. Hasan +11 more
TL;DR: In this paper, an angle-resolved photo-emission spectroscopy study was conducted to reveal the first observation of a topological state of matter featuring a single surface Dirac cone realized in the naturally occurring Bi-2Se-3 class of materials.
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A tunable topological insulator in the spin helical Dirac transport regime
David Hsieh,Yuqi Xia,Dong Qian,Lewis Wray,Jan Hugo Dil,Jan Hugo Dil,Fabian Meier,Fabian Meier,Jürg Osterwalder,Luc Patthey,Joseph Checkelsky,Nai Phuan Ong,Alexei V. Fedorov,Hsin Lin,Arun Bansil,D. Grauer,Yew San Hor,Robert J. Cava,M. Z. Hasan +18 more
TL;DR: The results reveal a spin-momentum locked Dirac cone carrying a non-trivial Berry’s phase that is nearly 100 per cent spin-polarized, which exhibits a tunable topological fermion density in the vicinity of the Kramers point and can be driven to the long-sought topological spin transport regime.
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Electronic structure and thermoelectric properties of bismuth telluride and bismuth selenide
TL;DR: In this article, the electronic structures of the two thermoelectric materials were studied using density-functional theory with the spin-orbit interaction included, and the electron states in the gap region and the chemical bonding can be described in terms of interaction between the atomic p orbitals within the ''quintuple'' layer.
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The crystal structure of Bi2Te3−xSex
TL;DR: In this paper, it has been confirmed that Bi 2 Te 3 and Bi 2 Se 3 form complete solid solutions, their space group being D 5 3d - R 3 m. The unit cell dimensions for the specimens having various compositions are given.
References
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Journal ArticleDOI
Electrical Properties of N -Type Germanium
P. P. Debye,Esther M. Conwell +1 more
TL;DR: In this paper, an analytical formula for obtaining the mobility from lattice and impurity mobilities is included, and the effect of electron-electron collisions on the mobility is considered in a qualitative manner.
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The use of semiconductors in thermoelectric refrigeration
H J Goldsmid,R W Douglas +1 more
TL;DR: In this article, the authors proposed that semiconductors should be chosen with high mean atomic weights and that they should be prepared with thermoelectric powers lying between 200 and 300 μVC-1.