Experimental study of the valence band of
Abstract
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.
- Authors:
-
- 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
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1185394
- Alternate Identifier(s):
- OSTI ID: 1179946
- Grant/Contract Number:
- AC05-00OR22725; CBET-1048622
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 90; Journal Issue: 12; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; thermoelectric
Citation Formats
Gao, Yi-Bin, He, Bin, Parker, David, Androulakis, Ioannis, and Heremans, Joseph P. Experimental study of the valence band of Bi2Se3. United States: N. p., 2014.
Web. doi:10.1103/PhysRevB.90.125204.
Gao, Yi-Bin, He, Bin, Parker, David, Androulakis, Ioannis, & Heremans, Joseph P. Experimental study of the valence band of Bi2Se3. United States. https://doi.org/10.1103/PhysRevB.90.125204
Gao, Yi-Bin, He, Bin, Parker, David, Androulakis, Ioannis, and Heremans, Joseph P. 2014.
"Experimental study of the valence band of Bi2Se3". United States. https://doi.org/10.1103/PhysRevB.90.125204. https://www.osti.gov/servlets/purl/1185394.
@article{osti_1185394,
title = {Experimental study of the valence band of Bi2Se3},
author = {Gao, Yi-Bin and He, Bin and Parker, David and Androulakis, Ioannis and Heremans, Joseph P.},
abstractNote = {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.},
doi = {10.1103/PhysRevB.90.125204},
url = {https://www.osti.gov/biblio/1185394},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 12,
volume = 90,
place = {United States},
year = {Fri Sep 26 00:00:00 EDT 2014},
month = {Fri Sep 26 00:00:00 EDT 2014}
}
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