Miniband Transport in a Two-Dimensional Electron Gas with a Strong Periodic Unidirectional Potential Modulation

Lyo, Sungkwun K.; Pan, Wei

doi:10.1016/j.ssc.2014.07.023

Title: Miniband Transport in a Two-Dimensional Electron Gas with a Strong Periodic Unidirectional Potential Modulation

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Abstract

In this paper, we study the Bloch oscillations of a two-dimensional electron gas with a strong periodic potential-modulation and miniband transport along the field at low temperatures, assuming a free motion in the transverse direction. The dependence of the current on the field, the electron density, and the temperature is investigated by using a relaxation-time approximation for inelastic scattering. Moreover, for a fixed total scattering rate, the field dependence of the current is sensitive to the ratio of the elastic and inelastic scattering rates in contrast with the recent result of a multiband but otherwise similar model with a weak potential modulation.

Authors:

Lyo, Sungkwun K. ^[1]; Pan, Wei ^[2]

Univ. of California, Irvine, CA (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Publication Date:: Thu Aug 07 00:00:00 EDT 2014

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1183082

Alternate Identifier(s):: OSTI ID: 1776191

Report Number(s):: SAND-2014-16699J
Journal ID: ISSN 0038-1098; 534592

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: Solid State Communications

Additional Journal Information:: Journal Volume: 196; Journal ID: ISSN 0038-1098

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; A. semiconductors; C. two-dimensional systems; D. High-field transport

Citation Formats


                    Lyo, Sungkwun K., and Pan, Wei. Miniband Transport in a Two-Dimensional Electron Gas with a Strong Periodic Unidirectional Potential Modulation.  United States: N. p., 2014. 
Web.  doi:10.1016/j.ssc.2014.07.023.

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                    Lyo, Sungkwun K., & Pan, Wei. Miniband Transport in a Two-Dimensional Electron Gas with a Strong Periodic Unidirectional Potential Modulation.  United States.  https://doi.org/10.1016/j.ssc.2014.07.023

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                    Lyo, Sungkwun K., and Pan, Wei. Thu .  
"Miniband Transport in a Two-Dimensional Electron Gas with a Strong Periodic Unidirectional Potential Modulation".  United States.  https://doi.org/10.1016/j.ssc.2014.07.023.  https://www.osti.gov/servlets/purl/1183082.

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@article{osti_1183082,

  title        = {Miniband Transport in a Two-Dimensional Electron Gas with a Strong Periodic Unidirectional Potential Modulation},

  author       = {Lyo, Sungkwun K. and Pan, Wei},

  abstractNote = {In this paper, we study the Bloch oscillations of a two-dimensional electron gas with a strong periodic potential-modulation and miniband transport along the field at low temperatures, assuming a free motion in the transverse direction. The dependence of the current on the field, the electron density, and the temperature is investigated by using a relaxation-time approximation for inelastic scattering. Moreover, for a fixed total scattering rate, the field dependence of the current is sensitive to the ratio of the elastic and inelastic scattering rates in contrast with the recent result of a multiband but otherwise similar model with a weak potential modulation.},

  doi          = {10.1016/j.ssc.2014.07.023},

  journal      = {Solid State Communications},

  number       = ,

  volume       = 196,

  place        = {United States},

  year         = {Thu Aug 07 00:00:00 EDT 2014},

  month        = {Thu Aug 07 00:00:00 EDT 2014}

}

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