Bloch-Grüneisen nonlinearity of electron transport in GaAs/AlGaAs heterostructures [electronic resource]
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| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. National Nuclear Security Administration ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2017.
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| Subjects: |
| 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. |
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| Item Description: | Published through SciTech Connect. 08/22/2017. "sand--2017-7643j" "655524" Physical Review B 96 8 ISSN 2469-9950; PRBMDO AM. O. E. Raichev; A. T. Hatke; M. A. Zudov; J. L. Reno. |
| Physical Description: | Article No. 081407(R) : digital, PDF file. |