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Pis'ma v Zh. Èksper. Teoret. Fiz., 2015, Volume 101, Issue 7, Pages 518–521 (Mi jetpl4597)  

CONDENSED MATTER

Thermoelectric properties of Au-based metallic glass at low temperatures

V. V. Pryaduna, D. V. Louzguine-Luzginb, L. V. Shvanskayaac, A. N. Vasilievacd

a MSU, 119991 Moscow, Russia
b WPI Advanced Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-Ku, 980-8577 Sendai, Japan
c National University of Science and Technology "MISiS", 119049 Moscow, Russia
d Theoretical Physics and Applied Mathematics Department, Ural Federal University, 620002 Ekaterinburg, Russia

Abstract: Thermoelectric properties of Au$_{49}$Cu$_{26.9}$Ag$_{5.5}$Pd$_{2.3}$Si$_{16.3}$ glassy alloy have been studied using electrical resistivity, thermal conductivity and Seebeck coefficient measurements over temperature range $2$$390$ K. At heating, resistivity $\rho$ decreases in a power-law manner from residual value $\rho_0\sim150 \mu\Omega {\cdot} $cm. The temperature coefficient of resistivity, $\alpha=\rho^{-1}(\partial\rho/\partial T)$, is rather small and varies non-monotonously. Thermal conductivity $\kappa$ rises linearly at low temperatures; it exhibits a plateau-like feature and sharply increases at elevated temperatures. Seebeck coefficient $S$ increases with temperature and exhibits a characteristic “knee” feature. At elevated temperatures, $S$ increases linearly with temperature but with a different slope. It total, thermoelectric properties of Au-based glassy alloy demonstrate behaviour of a highly disordered system in a most pronounced manner.

DOI: https://doi.org/10.7868/S0370274X15070097

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English version:
Journal of Experimental and Theoretical Physics Letters, 2015, 101:7, 465–468

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Received: 24.02.2015
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Citation: V. V. Pryadun, D. V. Louzguine-Luzgin, L. V. Shvanskaya, A. N. Vasiliev, “Thermoelectric properties of Au-based metallic glass at low temperatures”, Pis'ma v Zh. Èksper. Teoret. Fiz., 101:7 (2015), 518–521; JETP Letters, 101:7 (2015), 465–468

Citation in format AMSBIB
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\paper Thermoelectric properties of Au-based metallic glass at low temperatures
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