Thermoelectric properties of Au-based metallic glass at low temperatures

V. V. Pryadun, D. V. Louzguine-Luzgin, L. V. Shvanskaya, A. N. Vasiliev

Research output: Contribution to journalArticlepeer-review

Abstract

The thermoelectric properties of Au49Cu26.9Ag5.5Pd2.3Si16.3 glassy alloy have been studied using electrical resistivity, thermal conductivity and Seebeck coefficient measurements over temperature range 2–390 K. At heating, resistivity ρ decreases in a power-law manner from residual value ρ0 ∼ 150 μΩ cm. The temperature coefficient of resistivity, α = ρ−1(∂ρ/∂T), is rather small and varies non-monotonously. Thermal conductivity κ 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 behavior of a highly disordered system in a most pronounced manner.

Original languageEnglish
Pages (from-to)465-468
Number of pages4
JournalJETP Letters
Volume101
Issue number7
DOIs
Publication statusPublished - 2015 Apr 19

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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