Observation of an Even–Odd Asymmetric Transport in High Landau Levels
Guang-Tong Liu1** , Yu-Ying Zhu1 , Qin Wang1 , Yuan Pang1 , Jie Fan1 , Xiu-Nian Jing1,2 , Zhong-Qing Ji1 , Chang-Li Yang1,2 , Li Lu1,2 , Rui-Rui Du2,3 , L. N. Pfeiffer4 , K. W. West4
1 Daniel Chee Tsui Laboratory, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001902 Collaborative Innovation Center of Quantum Matter, Beijing 1008713 International Center for Quantum Materials, Peking University, Beijing 1008714 Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
Abstract ：Magnetotransport experiments including tilt fields are performed on ultrahigh mobility L-shaped Hall-bar samples of GaAs/AlGaAs quantum wells. The low-temperature longitudinal resistivity ($\rho_{xx}$) data demonstrate that a striking even–odd asymmetric transport exists along the [1$\overline{1}$0] direction at half filling in $N\geq 2$ high Landau levels. Although the origin for the peculiar even–odd asymmetry remains unclear, we propose that the coupling strength between electrons within the same Landau level and between the neighboring two Landau levels should be considered in future studies. The tilt field data show that the in-plane field can suppress the formation of both bubble and stripe phases.
收稿日期: 2016-11-23
出版日期: 2017-02-28
引用本文:
. [J]. 中国物理快报, 2017, 34(3): 37301-037301.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/34/3/037301
或
https://cpl.iphy.ac.cn/CN/Y2017/V34/I3/37301
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2017, Vol. 34 
