Research output: Contribution to journal › Article › peer-review
Anisotropy of the in-plane g-factor of electrons in HgTe quantum wells. / Minkov, G. M.; Ya Aleshkin, V.; Rut, O. E. et al.
In: Physical Review B, Vol. 101, No. 8, 085305, 15.02.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Anisotropy of the in-plane g-factor of electrons in HgTe quantum wells
AU - Minkov, G. M.
AU - Ya Aleshkin, V.
AU - Rut, O. E.
AU - Sherstobitov, A. A.
AU - Dvoretski, S. A.
AU - Mikhailov, N. N.
AU - Germanenko, A. V.
N1 - Publisher Copyright: © 2020 American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/2/15
Y1 - 2020/2/15
N2 - The results of experimental studies of the Shubnikov-de Haas (SdH) effect in the (013)-HgTe/Hg1-xCdxTe quantum wells (QWs) of electron type of conductivity both with normal and inverted energy spectrum are reported. Comprehensive analysis of the SdH oscillations measured for the different orientations of magnetic field relative to the quantum well plane and crystallographic exes allows us to investigate the anisotropy of the Zeeman effect. For the QWs with inverted spectrum, it has been shown that the ratio of the spin splitting to the orbital one is strongly dependent not only on the orientation of the magnetic field relative to the QW plane but also on the orientation of the in-plane magnetic field component relative to crystallographic axes laying in the QW plane that implies the strong anisotropy of in-plane g-factor. In the QW with normal spectrum, this ratio strongly depends on the angle between the magnetic field and the normal to the QW plane and reveals a very slight anisotropy in the QW plane. To interpret the data, the Landau levels in the tilted magnetic field are calculated within the framework of four-band kP model. It is shown that the experimental results can be quantitatively described only with taking into account the interface inversion asymmetry.
AB - The results of experimental studies of the Shubnikov-de Haas (SdH) effect in the (013)-HgTe/Hg1-xCdxTe quantum wells (QWs) of electron type of conductivity both with normal and inverted energy spectrum are reported. Comprehensive analysis of the SdH oscillations measured for the different orientations of magnetic field relative to the quantum well plane and crystallographic exes allows us to investigate the anisotropy of the Zeeman effect. For the QWs with inverted spectrum, it has been shown that the ratio of the spin splitting to the orbital one is strongly dependent not only on the orientation of the magnetic field relative to the QW plane but also on the orientation of the in-plane magnetic field component relative to crystallographic axes laying in the QW plane that implies the strong anisotropy of in-plane g-factor. In the QW with normal spectrum, this ratio strongly depends on the angle between the magnetic field and the normal to the QW plane and reveals a very slight anisotropy in the QW plane. To interpret the data, the Landau levels in the tilted magnetic field are calculated within the framework of four-band kP model. It is shown that the experimental results can be quantitatively described only with taking into account the interface inversion asymmetry.
KW - TEMPERATURE-DEPENDENCE
KW - MAGNETIC-FIELD
KW - BAND
KW - SEMIMETAL
UR - http://www.scopus.com/inward/record.url?scp=85082800278&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.101.085305
DO - 10.1103/PhysRevB.101.085305
M3 - Article
AN - SCOPUS:85082800278
VL - 101
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 8
M1 - 085305
ER -
ID: 23951481