Thermoelectric power and phase transition of polycrystalline As 2Te3 under pressure

T. J. Scheidemantel, J. F. Meng, J. V. Badding

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The pressure dependence of the thermoelectric power of monoclinic As 2Te3 is measured up to 10 GPa using a Mao-Bell diamond anvil cell. The thermoelectric power never reaches an absolute value greater than the ambient pressure value of 242 μV/K. Evidence of a phase transition is present between 6 and 8 GPa where the thermoelectric power reaches an absolute value of 225 μV/K after passing through a minimum of S≈75 μV/K. X-ray diffraction experiments confirm that the resulting structure is β-As2Te3, which is isostructural with Bi 2Te3 and Sb2Te3.

Original languageEnglish (US)
Pages (from-to)1744-1747
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Issue number10
StatePublished - Oct 2005

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


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