Thermal plasmon Frequency for tunable extrinsic Dirac structures
ORAL
Abstract
Analytic expressions have been obtained for the chemical potential of a variety of extrinsic (doped) gapped Dirac materials. We also created a reliable piecewise-linear model for the density-of-states in molybdenum disulfide, which demonstrates good agreement with previously obtained numerical results. A decrease of chemical potential with increasing temperature due to enhanced thermal populations of an upper subband in silicene was also shown. In MoS$_2$, the chemical potential is found to cross a zero-energy point at sufficiently high temperatures because of the broken symmetry with respect to electron and hole states.
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Presenters
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Godfrey Gumbs
- Physics and Astronomy, Hunter college
- Hunter college, CUNY
- Physics and astronomy, Hunter College-City University of New York
- Physics and Astronomy, Hunter College, CUNY
- Department of Physics & Astronomy, Hunter College of CUNY
- Hunter College, CUNY
- Department of Physics and Astronomy, Hunter College of the City University of New York
- Department of Physics and Astronomy, Hunter College, City University of New York