Pressure evolution of electrical transport in the 3D topological insulator (Bi,Sb) 2 (Se,Te) 3

Jeffries, J. R.; Butch, N. P.; Vohra, Y. K.; Weir, S. T.

doi:10.1088/1742-6596/592/1/012124

Title: Pressure evolution of electrical transport in the 3D topological insulator (Bi,Sb) ₂ (Se,Te) ₃

Journal Article · Wed Mar 18 00:00:00 EDT 2015 · Journal of Physics. Conference Series (Online)

DOI:https://doi.org/10.1088/1742-6596/592/1/012124· OSTI ID:1338319

Jeffries, J. R. ^[1]; Butch, N. P. ^[2]; Vohra, Y. K. ^[3]; Weir, S. T. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Univ. of Alabama, Tuscaloosa, AL (United States)

The group V-VI compounds|like Bi₂Se₃, Sb₂Te₃, or Bi₂Te₃|have been widely studied in recent years for their bulk topological properties. The high-Z members of this series form with the same crystal structure, and are therefore amenable to isostructural substitution studies. It is possible to tune the Bi-Sb and Te-Se ratios such that the material exhibits insulating behavior, thus providing an excellent platform for understanding how a topological insulator evolves with applied pressure. We report our observations of the pressure-dependent electrical transport and crystal structure of a pseudobinary (Bi,Sb)₂(Te,Se)₃ compound. Similar to some of its sister compounds, the (Bi,Sb)₂(Te,Se)₃ pseudobinary compound undergoes multiple, pressure-induced phase transformations that result in metallization, the onset of a close-packed crystal structure, and the development of distinct superconducting phases.

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Research Organization:: Carnegie Inst. of Science, Washington, DC (United States). Geophysical Lab.

Sponsoring Organization:: USDOE Office of Legacy Management (LM), Office of Field Operations; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0002006

OSTI ID:: 1338319

Journal Information:: Journal of Physics. Conference Series (Online), Vol. 592; ISSN 1742-6596

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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References (14)

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