论文标题
shubnikov -de haas振荡在HGTE量子中的异常相移，倒倒能谱
Anomalous phase shift of Shubnikov - de Haas oscillations in HgTe quantum well with inverted energy spectrum
论文作者
论文摘要
出现了HGCDTE/HGTE/HGTE/HGCDTE异质结构，其纵向和霍尔磁性测量结果具有宽（20.3 nm）HGTE量子。检测到磁振荡的异常相移：在旋转幅度峰的区域中，纵向电阻率最大值位于均匀填充因子的数量，这与2D系统中常规情况矛盾。结果表明，所观察到的特征与沿HGTE带γ8的尺寸定量子带H1沿电子型传导良好的量子中的频谱的倒置性质相关，为此，旋转分裂与（甚至大于）相当（甚至大于）。将获得的结果与单层石墨烯中磁振荡和量子厅效应的平稳效果的相移效应进行了比较。
The results of the longitudinal and Hall magnetoresistivity measurements in the Shubnikov - de Haas oscillation regime for the HgCdTe/HgTe/HgCdTe heterostructures with a wide (20.3 nm) HgTe quantum well are presented. An anomalous phase shift of magneto-oscillations is detected: in the region of spin-unsplit peaks the longitudinal resistivity maxima are located at even filling factor numbers in contradiction with a conventional situation in 2D systems. It is shown that the observed features are associated with the inverted nature of the spectrum in the investigated quantum well with the electron-type conduction along the size-quantized subband H1 of HgTe band Γ8, for which the spin splitting is comparable to (and even greater than) the orbital one. The results obtained are compared with the phase shift effects of both magneto-oscillations and the plateau of the quantum Hall effect in monolayer graphene.
