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arXiv 2004.03568cond-mat.mtrl-sci
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自旋轨道相互作用引起能谱分裂的二维系统的磁子带间振荡

Magneto-intersubband oscillations in two dimensional systems with energy spectrum split due to spin-orbit interaction

G. M. Minkov, O. E. Rut, A. A. Sherstobitov, A. V. Germanenko, S. A. Dvoretski, N. N. Mikhailov, S. V. Ivanov, V. A. Soloviev, M. U. Chernov

摘要:

本文研究了HgTe/Hg $_{1-x}$ Cd $_x$ Te单量子阱中的磁子带间振荡(MISO)谱的“反转”和“正常”谱,以及常规In $_{1-x}$ Ga $_x$ As/In $_{1-y}$ Al $_y$ As量子阱中的磁子带间振荡(MISO)谱的正常谱。对于所有的情况下,当两个分支的光谱出现由于自旋轨道分裂,的Shubnikov-de Haas振荡的腹和MISO的最大值的相互安排发生相反的双量子阱和宽量子阱中观察到的两个子带占据,不同意的理论预测。一个“玩具”模型,应该定性解释这一不寻常的结果。

英文摘要:

In the present paper we study magneto-intersubband oscillations (MISO) in HgTe/Hg$_{1-x}$Cd$_x$Te single quantum well with "inverted" and "normal" spectra and in conventional In$_{1-x}$Ga$_x$As/In$_{1-y}$Al$_y$As quantum wells with normal band ordering. For all the cases when two branches of the spectrum arise due to spin-orbit splitting, the mutual arrangement of the antinodes of the Shubnikov-de Haas oscillations and the maxima of MISO occurs opposite to that observed in double quantum wells and in wide quantum wells with two subbands occupied and does not agree with the theoretical predictions. A "toy" model is supposed that explain qualitatively this unusual result.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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