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Zeeman splitting of conduction band in HgTe quantum wells near the Dirac point. / Minkov, G. M.; Rut, O. E.; Sherstobitov, A. A. и др.
в: Physica E: Low-Dimensional Systems and Nanostructures, Том 91, 01.07.2017, стр. 203-208.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Zeeman splitting of conduction band in HgTe quantum wells near the Dirac point
AU - Minkov, G. M.
AU - Rut, O. E.
AU - Sherstobitov, A. A.
AU - Dvoretski, S. A.
AU - Mikhailov, N. N.
N1 - Publisher Copyright: © 2017 Elsevier B.V.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - The Zeeman splitting of the conduction band in the HgTe quantum wells both with normal and inverted spectrum has been studied experimentally in a wide electron density range. The simultaneous analysis of the Shubnikov-de Haas (SdH) oscillations in low magnetic fields at different tilt angles and of the shape of the oscillations in moderate magnetic fields gives a possibility to find the ratio of the Zeeman splitting to the orbital one and anisotropy of g-factor. It is shown that the ratios of the Zeeman splitting to the orbital one are close to each other for both types of structures, with a normal and inverted spectrum and they are close enough to the values calculated within kP method. In contrast, the values of g-factor anisotropy in the structures with normal and inverted spectra are strongly different and for both cases differ significantly from the calculated ones. We assume that such disagreement with calculations is a result of the interface inversion asymmetry in the HgTe quantum well, which is not taken into account in the kP calculations.
AB - The Zeeman splitting of the conduction band in the HgTe quantum wells both with normal and inverted spectrum has been studied experimentally in a wide electron density range. The simultaneous analysis of the Shubnikov-de Haas (SdH) oscillations in low magnetic fields at different tilt angles and of the shape of the oscillations in moderate magnetic fields gives a possibility to find the ratio of the Zeeman splitting to the orbital one and anisotropy of g-factor. It is shown that the ratios of the Zeeman splitting to the orbital one are close to each other for both types of structures, with a normal and inverted spectrum and they are close enough to the values calculated within kP method. In contrast, the values of g-factor anisotropy in the structures with normal and inverted spectra are strongly different and for both cases differ significantly from the calculated ones. We assume that such disagreement with calculations is a result of the interface inversion asymmetry in the HgTe quantum well, which is not taken into account in the kP calculations.
UR - http://www.scopus.com/inward/record.url?scp=85018789071&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2017.04.023
DO - 10.1016/j.physe.2017.04.023
M3 - Article
AN - SCOPUS:85018789071
VL - 91
SP - 203
EP - 208
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
ER -
ID: 10256622