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Pressure Tuning of Crystalline As2Te3

Published online by Cambridge University Press:  01 February 2011

T. J. Scheidemantel ,
J. F. Meng  and
J. V. Badding
T. J. Scheidemantel
Affiliation:
Department of Physics, The Pennsylvania State University, University Park, PA, USA, 16802 Department of Chemistry and Materials Research Institute, The Pennsyl vania State University, University Park, PA, USA, 16802
J. F. Meng
Affiliation:
Department of Chemistry and Materials Research Institute, The Pennsyl vania State University, University Park, PA, USA, 16802
J. V. Badding
Affiliation:
Department of Chemistry and Materials Research Institute, The Pennsyl vania State University, University Park, PA, USA, 16802
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Abstract

We report the pressure dependence of the thermoelectric power of As2Te3. Pressures up to 10 GPa were induced using a Mao-Bell diamond anvil cell. The absolute value of the thermoelectric power dropped from S ≈ 230μV/K at ambient pressure to S ≈ 75 GPa near 5 GPa. At 6 GPa it then increased rapidly to S ≈ 220βV/K. This behavior is indicative of a structural phase transition as suggested by previously published high pressure phase diagrams.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 848: Symposium FF – Solid-State Chemistry of Inorganic Materials V , 2004 , FF4.6
Copyright
Copyright © Materials Research Society 2005

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