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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Multiple crossings of Landau levels of two-dimensional fermions in double HgTe quantum wells

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Author(s):
Gusev, G. M. [1] ; Olshanetsky, E. B. [2] ; Hernandez, F. G. G. [1] ; Raichev, O. E. [3] ; Mikhailov, N. N. [2] ; Dvoretsky, S. A. [2]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Inst Fis, BR-13596017 Sao Paulo, SP - Brazil
[2] Inst Semicond Phys, Novosibirsk 630090 - Russia
[3] NAS Ukraine, Inst Semicond Phys, Prospekt Nauki 41, UA-03028 Kiev - Ukraine
Total Affiliations: 3
Document type: Journal article
Source: Physical Review B; v. 103, n. 3 JAN 13 2021.
Web of Science Citations: 0
Abstract

The double quantum well systems consisting of two HgTe layers separated by a tunnel-transparent barrier are expected to manifest a variety of phase states including two-dimensional gapless semimetal and two-dimensional topological insulator. The presence of several subbands in such systems leads to a rich filling factor diagram in the quantum Hall regime. We have performed magnetotransport measurements of the HgTe-based double quantum wells in both a gapless and gapped state and observed numerous crossings between the Landau levels belonging to different subbands. We analyze the Landau level crossing patterns and compare them to the results of theoretical calculations. (AU)

FAPESP's process: 15/16191-5 - The research in new materials involving high magnetic fields and low temperatures
Grantee:Gennady Gusev
Support type: Research Projects - Thematic Grants
FAPESP's process: 18/21945-7 - Viscous transport in two-dimensional Dirac liquids
Grantee:Gennady Gusev
Support type: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 18/06142-5 - Kerr/Faraday rotation in quantum materials
Grantee:Felix Guillermo Gonzalez Hernandez
Support type: Regular Research Grants
FAPESP's process: 19/17775-1 - Estudos do efeito de dimensão e viscosidade na magnetorresistência e fenômenos magneto-termoelétricos em condutores mesoscópicos bidimensionais
Grantee:Gennady Gusev
Support type: Research Grants - Visiting Researcher Grant - International