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|a (TOE)ost1430128
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|a E 1.99:1430128
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|a Tunable electron heating induced giant magnetoresistance in the high mobility GaAs/AlGaAs 2D electron system
|h [electronic resource]
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|a Washington, D.C. :
|b United States. Department of Energy. Office of Basic Energy Sciences ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
|c 2016.
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|a Article No. 38516 :
|b digital, PDF file.
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|a text
|b txt
|2 rdacontent.
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|a computer
|b c
|2 rdamedia.
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|a online resource
|b cr
|2 rdacarrier.
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|a Published through SciTech Connect.
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|a 12/07/2016.
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|a ": BFsrep38516"
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|a Scientific Reports 6 1 ISSN 2045-2322 AM.
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| 500 |
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|a Zhuo Wang; R. L. Samaraweera; C. Reichl; W. Wegscheider; R. G. Mani.
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|a Georgia State Univ., Atlanta, GA (United States)
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| 520 |
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|a Electron-heating induced by a tunable, supplementary dc-current (I<sub>dc</sub>) helps to vary the observed magnetoresistance in the high mobility GaAs/AlGaAs 2D electron system. The magnetoresistance at B = 0.3 T is shown to progressively change from positive to negative with increasing Idc, yielding negative giant-magnetoresistance at the lowest temperature and highest I<sub>dc</sub>. A two-term Drude model successfully fits the data at all Idc and T. The results indicate that carrier heating modifies a conductivity correction σ<sub>1</sub>, which undergoes sign reversal from positive to negative with increasing I<sub>dc</sub>, and this is responsible for the observed crossover from positive- to negative- magnetoresistance, respectively, at the highest B.
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|b SC0001762.
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|a Classical And Quantum Mechanics, General Physics.
|2 edbsc.
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| 650 |
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|a Condensed Matter Physics, Superconductivity And Superfluidity.
|2 edbsc.
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| 710 |
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|a United States.
|b Department of Energy.
|b Office of Basic Energy Sciences.
|4 spn.
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| 710 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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|u http://www.osti.gov/scitech/biblio/1430128
|z Online Access (via OSTI)
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|a .b105110036
|b 03-09-23
|c 05-17-19
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|a web
|b 05-17-19
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| 952 |
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:1430128
|h Superintendent of Documents classification
|i web
|n 1
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