Bloch-Grüneisen nonlinearity of electron transport in GaAs/AlGaAs heterostructures
Abstract
We report on nonlinear transport measurements in a two-dimensional electron gas hosted in GaAs/AlGaAs heterostructures. Upon application of direct current, the low-temperature differential resistivity acquires a positive correction, which exhibits a pronounced maximum followed by a plateau. With increasing temperature, the nonlinearity diminishes and disappears. These observations can be understood in terms of a crossover from the Bloch-Gr¨uneisen regime to the quasielastic scattering regime as the electrons are heated by direct current. Calculations considering interaction of electrons with acoustic phonons provide reasonable description of our experimental findings.
- Authors:
-
- National Academy of Sciences of Ukraine (NASU), Kiev (Ukraine)
- Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
- Univ. of Minnesota, Minneapolis, MN (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1399514
- Alternate Identifier(s):
- OSTI ID: 1375837
- Report Number(s):
- SAND-2017-7643J
Journal ID: ISSN 2469-9950; PRBMDO; 655524
- Grant/Contract Number:
- AC04-94AL85000; FG0205-ER46212; NA-0003525
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 96; Journal Issue: 8; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Raichev, O. E., Hatke, A. T., Zudov, M. A., and Reno, J. L. Bloch-Grüneisen nonlinearity of electron transport in GaAs/AlGaAs heterostructures. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.96.081407.
Raichev, O. E., Hatke, A. T., Zudov, M. A., & Reno, J. L. Bloch-Grüneisen nonlinearity of electron transport in GaAs/AlGaAs heterostructures. United States. https://doi.org/10.1103/PhysRevB.96.081407
Raichev, O. E., Hatke, A. T., Zudov, M. A., and Reno, J. L. Tue .
"Bloch-Grüneisen nonlinearity of electron transport in GaAs/AlGaAs heterostructures". United States. https://doi.org/10.1103/PhysRevB.96.081407. https://www.osti.gov/servlets/purl/1399514.
@article{osti_1399514,
title = {Bloch-Grüneisen nonlinearity of electron transport in GaAs/AlGaAs heterostructures},
author = {Raichev, O. E. and Hatke, A. T. and Zudov, M. A. and Reno, J. L.},
abstractNote = {We report on nonlinear transport measurements in a two-dimensional electron gas hosted in GaAs/AlGaAs heterostructures. Upon application of direct current, the low-temperature differential resistivity acquires a positive correction, which exhibits a pronounced maximum followed by a plateau. With increasing temperature, the nonlinearity diminishes and disappears. These observations can be understood in terms of a crossover from the Bloch-Gr¨uneisen regime to the quasielastic scattering regime as the electrons are heated by direct current. Calculations considering interaction of electrons with acoustic phonons provide reasonable description of our experimental findings.},
doi = {10.1103/PhysRevB.96.081407},
journal = {Physical Review B},
number = 8,
volume = 96,
place = {United States},
year = {Tue Aug 22 00:00:00 EDT 2017},
month = {Tue Aug 22 00:00:00 EDT 2017}
}
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