Zener Tunneling between the Landau Levels in a Two-Dimensional Electron System with One-Dimensional Periodic Modulation
- 作者: Bykov A.A.1,2, Strygin I.S.1, Rodyakina E.E.1,2, Vitkalov S.A.3
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隶属关系:
- Rzhanov Institute of Semiconductor Physics, Siberian Branch
- Novosibirsk State University
- Physics Department
- 期: 卷 108, 编号 2 (2018)
- 页面: 121-126
- 栏目: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/161188
- DOI: https://doi.org/10.1134/S0021364018140035
- ID: 161188
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详细
Nonlinear magnetotransport in a two-dimensional electron gas in one-dimensional lateral lattices fabricated from a selectively doped GaAs/AlAs heterostructure is investigated. One-dimensional potential modulation is imposed on the two-dimensional electron gas by means of a set of metal strips formed on the planar surface of Hall bars. The dependences of the differential resistance rxx on the magnetic field B < 0.5 T are studied at a temperature T = 1.6 K in lattices with a period of a ≈ 200nm. It is shown that periodic oscillations in rxx(1/B) occur in such lattices under the action of a current-induced Hall field due to Zener tunneling between Landau levels. Interference is found between Zener oscillations and commensurability oscillations of rxx in two-dimensional electron systems with one-dimensional periodic modulation. The experimental results are qualitatively explained by the role of Landau bands in nonlinear transport at large filling factors.
作者简介
A. Bykov
Rzhanov Institute of Semiconductor Physics, Siberian Branch; Novosibirsk State University
编辑信件的主要联系方式.
Email: bykov@isp.nsc.ru
俄罗斯联邦, Novosibirsk, 630090; Novosibirsk, 630090
I. Strygin
Rzhanov Institute of Semiconductor Physics, Siberian Branch
Email: bykov@isp.nsc.ru
俄罗斯联邦, Novosibirsk, 630090
E. Rodyakina
Rzhanov Institute of Semiconductor Physics, Siberian Branch; Novosibirsk State University
Email: bykov@isp.nsc.ru
俄罗斯联邦, Novosibirsk, 630090; Novosibirsk, 630090
S. Vitkalov
Physics Department
Email: bykov@isp.nsc.ru
美国, New York, NY, 10031
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