Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Thermoelectric transport in a three-dimensional hgte topological insulator. / Gusev, Gennady M.; Kvon, Ze D.; Levin, Alexander D. и др.
в: Nanomaterials, Том 11, № 12, 3364, 12.2021.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Thermoelectric transport in a three-dimensional hgte topological insulator
AU - Gusev, Gennady M.
AU - Kvon, Ze D.
AU - Levin, Alexander D.
AU - Mikhailov, Nikolay N.
N1 - Funding Information: Funding: The financial support of this work by the Ministry of Science and Higher Education of the Russian Federation, Grant No. 075-15-2020-797 (13.1902.21.0024); São Paulo Research Foundation (FAPESP) Grant No. 2015/16191-5, and the National Council for Scientific and Technological Development (CNPq) is acknowledged. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/12
Y1 - 2021/12
N2 - The thermoelectric response of 80 nm-thick strained HgTe films of a three-dimensional topological insulator (3D TI) has been studied experimentally. An ambipolar thermopower is observed where the Fermi energy moves from conducting to the valence bulk band. The comparison between theory and experiment shows that the thermopower is mostly due to the phonon drag contribution. In the region where the 2D Dirac electrons coexist with bulk hole states, the Seebeck coefficient is modified due to 2D electron–3D hole scattering.
AB - The thermoelectric response of 80 nm-thick strained HgTe films of a three-dimensional topological insulator (3D TI) has been studied experimentally. An ambipolar thermopower is observed where the Fermi energy moves from conducting to the valence bulk band. The comparison between theory and experiment shows that the thermopower is mostly due to the phonon drag contribution. In the region where the 2D Dirac electrons coexist with bulk hole states, the Seebeck coefficient is modified due to 2D electron–3D hole scattering.
KW - HgTe quantum well
KW - Quantum transport
KW - Thermopower
KW - Topological insulator
UR - http://www.scopus.com/inward/record.url?scp=85121033576&partnerID=8YFLogxK
U2 - 10.3390/nano11123364
DO - 10.3390/nano11123364
M3 - Article
C2 - 34947713
AN - SCOPUS:85121033576
VL - 11
JO - Nanomaterials
JF - Nanomaterials
SN - 2079-4991
IS - 12
M1 - 3364
ER -
ID: 34968797