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Seebeck and Nernst effects in topological insulator: The case of strained HgTe
- Source :
- Physica B: Condensed Matter. 627:413521
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- We theoretically study the thermoelectric transport properties of strained HgTe in the topological insulator phase. We developed a model for the system using a Dirac Hamiltonian including the effect of strain induced by the interface between HgTe and the CdTe substrate. The conductivity tensor was explored assuming the electrons are scattered by charge impurities, while the thermopower tensor was addressed using the Mott relation. Seebeck and Nernst responses exhibit remarkable enhancements in comparison with other two-dimensional Dirac materials, such as graphene, germanane, prosphorene and stanene. The intensity of these termoeletric responses, their dependencies with the external perpendicular magnetic field and temperature are also addressed.
- Subjects :
- Condensed Matter - Materials Science
Materials science
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed matter physics
Graphene
Dirac (software)
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
Electron
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
law.invention
Condensed Matter::Materials Science
symbols.namesake
law
Condensed Matter::Superconductivity
Seebeck coefficient
Topological insulator
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
symbols
Stanene
Condensed Matter::Strongly Correlated Electrons
Nernst equation
Electrical and Electronic Engineering
Germanane
Subjects
Details
- ISSN :
- 09214526
- Volume :
- 627
- Database :
- OpenAIRE
- Journal :
- Physica B: Condensed Matter
- Accession number :
- edsair.doi.dedup.....120d280eb3c9b3b5aaa3e1e8f20f7f77