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Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells. / Dobretsova, A. A.; Chepelianskii, A. D.; Mikhailov, N. N. et al.

In: Physical Review B, Vol. 98, No. 15, 155310, 11.10.2018.

Research output: Contribution to journal › Article › peer-review

Harvard

Dobretsova, AA, Chepelianskii, AD, Mikhailov, NN & Kvon, ZD 2018, 'Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells', Physical Review B, vol. 98, no. 15, 155310. https://doi.org/10.1103/PhysRevB.98.155310

APA

Dobretsova, A. A., Chepelianskii, A. D., Mikhailov, N. N., & Kvon, Z. D. (2018). Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells. Physical Review B, 98(15), [155310]. https://doi.org/10.1103/PhysRevB.98.155310

Vancouver

Dobretsova AA, Chepelianskii AD, Mikhailov NN, Kvon ZD. Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells. Physical Review B. 2018 Oct 11;98(15):155310. doi: 10.1103/PhysRevB.98.155310

Author

Dobretsova, A. A. ; Chepelianskii, A. D. ; Mikhailov, N. N. et al. / Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells. In: Physical Review B. 2018 ; Vol. 98, No. 15.

BibTeX

@article{acfa81868ac94ad09672d24498e561e1,
title = "Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells",
abstract = "We present both the experimental and theoretical investigations of a nontrivial electron Landau-level shift in magnetic field in wide (∼20 nm) HgTe quantum wells: Landau levels split under magnetic fields but become degenerate again when magnetic field increases. We reproduced this behavior qualitatively within an isotropic six-band Kane model; then using semiclassical calculations, we showed this behavior is due to the mixing of the conduction band with a total spin of 3/2 with the next well subband with a spin of 1/2, which reduces the average vertical spin from 3/2 to around 1. This change in the average spin changes the Berry phase, explaining the evolution of Landau levels under magnetic field.",
keywords = "2-DIMENSIONAL SEMIMETAL, MAGNETIC-SUSCEPTIBILITY, CYCLOTRON-RESONANCE, PHASE, INSULATOR, SCATTERING, SPECTRUM, STATE",
author = "Dobretsova, {A. A.} and Chepelianskii, {A. D.} and Mikhailov, {N. N.} and Kvon, {Z. D.}",
note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = oct,
day = "11",
doi = "10.1103/PhysRevB.98.155310",
language = "English",
volume = "98",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "15",

}

RIS

TY - JOUR

T1 - Spin mixing between subbands and extraordinary Landau-level shift in wide HgTe quantum wells

AU - Dobretsova, A. A.

AU - Chepelianskii, A. D.

AU - Mikhailov, N. N.

AU - Kvon, Z. D.

N1 - Publisher Copyright: © 2018 American Physical Society.

PY - 2018/10/11

Y1 - 2018/10/11

N2 - We present both the experimental and theoretical investigations of a nontrivial electron Landau-level shift in magnetic field in wide (∼20 nm) HgTe quantum wells: Landau levels split under magnetic fields but become degenerate again when magnetic field increases. We reproduced this behavior qualitatively within an isotropic six-band Kane model; then using semiclassical calculations, we showed this behavior is due to the mixing of the conduction band with a total spin of 3/2 with the next well subband with a spin of 1/2, which reduces the average vertical spin from 3/2 to around 1. This change in the average spin changes the Berry phase, explaining the evolution of Landau levels under magnetic field.

AB - We present both the experimental and theoretical investigations of a nontrivial electron Landau-level shift in magnetic field in wide (∼20 nm) HgTe quantum wells: Landau levels split under magnetic fields but become degenerate again when magnetic field increases. We reproduced this behavior qualitatively within an isotropic six-band Kane model; then using semiclassical calculations, we showed this behavior is due to the mixing of the conduction band with a total spin of 3/2 with the next well subband with a spin of 1/2, which reduces the average vertical spin from 3/2 to around 1. This change in the average spin changes the Berry phase, explaining the evolution of Landau levels under magnetic field.

KW - 2-DIMENSIONAL SEMIMETAL

KW - MAGNETIC-SUSCEPTIBILITY

KW - CYCLOTRON-RESONANCE

KW - PHASE

KW - INSULATOR

KW - SCATTERING

KW - SPECTRUM

KW - STATE

UR - http://www.scopus.com/inward/record.url?scp=85054923915&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.98.155310

DO - 10.1103/PhysRevB.98.155310

M3 - Article

AN - SCOPUS:85054923915

VL - 98

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 15

M1 - 155310

ER -

ID: 17117335