Phase transitions of p-type (Pb,Sn,Ge)Te-based alloys for thermoelectric applications

Yaniv Gelbstein, Ohad Ben-Yehuda, Zinovy Dashevsky, Moshe P. Dariel

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

p-type (Pb,Sn,Ge)Te-based alloys for thermoelectric applications were prepared using Bridgman technique. Second-order, rhombohedral to cubic phase transitions are involved, as evaluated from anomalies in the temperature dependence values of Seebeck coefficient, electrical conductivity, heat flow and the elongation, in the vicinity of the phase transition temperature, Tc. The correlation between these anomalies in both the electronic and thermodynamic properties was interpreted by means of the relationship of Fermi energy to the chemical potential (or to the molar Gibbs free energy).

Original languageEnglish
Pages (from-to)4289-4292
Number of pages4
JournalJournal of Crystal Growth
Volume311
Issue number18
DOIs
StatePublished - 1 Sep 2009

Keywords

  • A1. Phase equilibria
  • A2. Bridgman technique
  • B2: Semiconducting ternary compounds

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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