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Scientific article
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English

The temperature dependence of the Raman T2g lattice mode in K2S crystals

Published inSolid state ionics, vol. 139, no. 1-2, p. 159-162
Publication date2001
Abstract

The first-order Raman spectrum of K[2]S was measured over the temperature range from 10 to 742 K. The temperature dependence of the linewidth can be explained using results from the anharmonic lattice dynamics approach. Both the cubic and the quartic anharmonic interactions are of importance for this system. At 293 K, the Raman line is at ω[T2g]=128 cm[−1] with a full width at half maximum Γ[T2g]=2.9 cm[−1].

Keywords
  • Potassium sulfide
  • Ionic conductor
  • Raman effect
  • Thermal anharmonicity
Research group
Citation (ISO format)
BERTHEVILLE, B., BILL, Hans. The temperature dependence of the Raman T2g lattice mode in K2S crystals. In: Solid state ionics, 2001, vol. 139, n° 1-2, p. 159–162. doi: 10.1016/S0167-2738(00)00823-7
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ISSN of the journal0167-2738
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