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Title: Phase-sensitive magnetoresistance oscillations induced by commensurate bichromatic irradiations in a two-dimensional electron system

Abstract

We analyze a phase-sensitive contribution to the oscillating magnetoresistance induced by the combined driving of two microwave fields having commensurate frequencies ω{sub 1} and ω{sub 2} (m{sub 1}ω{sub 1} + m{sub 2}ω{sub 2} = 0 for at least a set of nonzero integers m{sub 1} and m{sub 2}), based on the balance-equation approach to magnetotransport for high-density two-dimensional electron systems. This commensurate oscillating photoresistance not only depends on the frequencies and polarizations of both microwaves, but varies drastically when changing the relative phases of two incident radiation fields. It shows up most significantly in the case of ω{sub 2}/ω{sub 1} = 3 and may lead to a phase-controllable change of more than a factor of two in the total magnetoresistivity in the vicinity of ω{sub 1}/ω{sub c} = 1.5 and 2.5 (ω{sub c} is the cyclotron frequency), when both radiation fields are linearly x-direction polarized.

Authors:
;  [1]
  1. Key Laboratory of Artificial Structures and Quantum Control, Department of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China)
Publication Date:
OSTI Identifier:
22304005
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 115; Journal Issue: 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CYCLOTRON FREQUENCY; DENSITY; ELECTRONS; MAGNETORESISTANCE; MICROWAVE RADIATION; OSCILLATIONS; POLARIZATION; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Lei, X. L., and Liu, S. Y. Phase-sensitive magnetoresistance oscillations induced by commensurate bichromatic irradiations in a two-dimensional electron system. United States: N. p., 2014. Web. doi:10.1063/1.4883315.
Lei, X. L., & Liu, S. Y. Phase-sensitive magnetoresistance oscillations induced by commensurate bichromatic irradiations in a two-dimensional electron system. United States. https://doi.org/10.1063/1.4883315
Lei, X. L., and Liu, S. Y. 2014. "Phase-sensitive magnetoresistance oscillations induced by commensurate bichromatic irradiations in a two-dimensional electron system". United States. https://doi.org/10.1063/1.4883315.
@article{osti_22304005,
title = {Phase-sensitive magnetoresistance oscillations induced by commensurate bichromatic irradiations in a two-dimensional electron system},
author = {Lei, X. L. and Liu, S. Y.},
abstractNote = {We analyze a phase-sensitive contribution to the oscillating magnetoresistance induced by the combined driving of two microwave fields having commensurate frequencies ω{sub 1} and ω{sub 2} (m{sub 1}ω{sub 1} + m{sub 2}ω{sub 2} = 0 for at least a set of nonzero integers m{sub 1} and m{sub 2}), based on the balance-equation approach to magnetotransport for high-density two-dimensional electron systems. This commensurate oscillating photoresistance not only depends on the frequencies and polarizations of both microwaves, but varies drastically when changing the relative phases of two incident radiation fields. It shows up most significantly in the case of ω{sub 2}/ω{sub 1} = 3 and may lead to a phase-controllable change of more than a factor of two in the total magnetoresistivity in the vicinity of ω{sub 1}/ω{sub c} = 1.5 and 2.5 (ω{sub c} is the cyclotron frequency), when both radiation fields are linearly x-direction polarized.},
doi = {10.1063/1.4883315},
url = {https://www.osti.gov/biblio/22304005}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 23,
volume = 115,
place = {United States},
year = {Sat Jun 21 00:00:00 EDT 2014},
month = {Sat Jun 21 00:00:00 EDT 2014}
}