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|a Optimal carrier concentration for FeSb<sub>2</sub> colossal thermopower
|h [electronic resource]
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|a Washington, D.C. :
|b United States. Department of Energy. Office of Science ;
|a Oak Ridge, Tenn. :
|b Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
|c 2021.
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|a Size: Article No. 233901 :
|b digital, PDF file.
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|a text
|b txt
|2 rdacontent.
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|2 rdamedia.
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|a online resource
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|a Published through Scitech Connect.
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|a 06/07/2021.
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|a "BNL-221725-2021-JAAM."
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|a "Journal ID: ISSN 0003-6951."
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|a ": US2212731."
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|a Du, Qianheng ; Petrovic, Cedomir ;
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|a Crystals of FeSb<sub>2</sub> correlated narrow-gap semiconductor host colossal thermopower values. By tuning the impurity level here, we demonstrate that electron-phonon scattering that transfers phonon momentum to electrons is efficient only for certain optimal carrier concentration in the low-mobility band. Phonon drag acting on such states in crystals with high phonon mean free path enhances thermopower to colossal values, whereas for different carrier concentration, dominant thermal transport mechanism is electronic diffusion. This highlights the dual nature of correlated in-gap states that take part in the phonon drag but also reduce phonon mean free path.
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|b SC0012704.
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|a 75 condensed matter physics, superconductivity and superfluidity
|2 local.
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|a Thermoelectric effects
|2 local.
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|a Thermal transport
|2 local.
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|a Phonon scattering
|2 local.
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|a Condensed matter physics, superconductivity and superfluidity
|2 local.
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|a Brookhaven National Laboratory.
|4 res.
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|a United States.
|b Department of Energy.
|b Office of Science.
|4 spn.
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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 https://www.osti.gov/servlets/purl/1805264
|z Full Text (via OSTI)
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|a .b12825614x
|b 02-28-23
|c 12-08-22
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|b 12-08-22
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:BNL-221725-2021-JAAM
|h Superintendent of Documents classification
|i web
|n 1
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