Experimental study of the valence band of
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- The Ohio State Univ., Columbus, OH (United States). Dept of Mechanical and Aerospace Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- Gentherm, Inc., Azusa, CA (United States)
- The Ohio State Univ., Columbus, OH (United States). Dept of Mechanical and Aerospace Engineering; The Ohio State Univ., Columbus, OH (United States). Dept of Physics
The valence band of Bi2Se3 is investigated with Shubnikov - de Haas measurements, galvanomagnetic and thermoelectric transport. At low hole concentration, the hole Fermi surface is closed and box-like, but at higher concentrations it develops tube-like extensions that are open. The experimentally determined density-of-states effective mass is lighter than density-functional theory calculations predict; while we cannot give a definitive explanation for this, we suspect that the theory may lack sufficient precision to compute room-temperature transport properties, such as the Seebeck coefficient, in solids in which there are Van der Waals interlayer bonds.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725; CBET-1048622
- OSTI ID:
- 1185394
- Alternate ID(s):
- OSTI ID: 1179946
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 90, Issue 12; ISSN 1098-0121
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 13 works
Citation information provided by
Web of Science
Web of Science
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Two-band model interpretation of the p - to n -transition in ternary tetradymite topological insulators
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journal | August 2015 |
Optical properties of Bi 2 Se 3 : from bulk to ultrathin films
|
journal | November 2016 |
Two Band Model Interpretation of the p to n Transition in Ternary Tetradymite Topological Insulators | preprint | January 2015 |
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