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Title: Nanoscale {alpha}-structural domains in the phonon-glass thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}

Abstract

A study of the local atomic structure of the promising thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}, using atomic pair distribution function (PDF) analysis of x-ray- and neutron-diffraction data, suggests that the material is nanostructured. The local structure of the {beta} phase closely resembles that of the low-temperature {alpha} phase. The {alpha} structure contains ordered zinc interstitial atoms which are not long range ordered in the {beta} phase. A rough estimate of the domain size from a visual inspection of the PDF is < or approx. 10 nm. It is probable that the nanoscale domains found in this study play an important role in the exceptionally low thermal conductivity of {beta}-Zn{sub 4}Sb{sub 3}.

Authors:
; ;  [1]; ;  [2]
  1. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-1116 (United States)
  2. Department of Materials Science, California Institute of Technology, Pasadena, California 91125 (United States)
Publication Date:
OSTI Identifier:
20957785
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 13; Other Information: DOI: 10.1103/PhysRevB.75.134103; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTIMONY COMPOUNDS; DISTRIBUTION FUNCTIONS; GLASS; INTERSTITIALS; NANOSTRUCTURES; NEUTRON DIFFRACTION; PHONONS; TEMPERATURE RANGE 0065-0273 K; THERMAL CONDUCTIVITY; THERMOELECTRIC MATERIALS; THERMOELECTRICITY; X-RAY DIFFRACTION; ZINC; ZINC COMPOUNDS

Citation Formats

Kim, H. J., Bozin, E. S., Billinge, S. J. L., Haile, S. M., and Snyder, G. J. Nanoscale {alpha}-structural domains in the phonon-glass thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.134103.
Kim, H. J., Bozin, E. S., Billinge, S. J. L., Haile, S. M., & Snyder, G. J. Nanoscale {alpha}-structural domains in the phonon-glass thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}. United States. doi:10.1103/PHYSREVB.75.134103.
Kim, H. J., Bozin, E. S., Billinge, S. J. L., Haile, S. M., and Snyder, G. J. Sun . "Nanoscale {alpha}-structural domains in the phonon-glass thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}". United States. doi:10.1103/PHYSREVB.75.134103.
@article{osti_20957785,
title = {Nanoscale {alpha}-structural domains in the phonon-glass thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}},
author = {Kim, H. J. and Bozin, E. S. and Billinge, S. J. L. and Haile, S. M. and Snyder, G. J.},
abstractNote = {A study of the local atomic structure of the promising thermoelectric material {beta}-Zn{sub 4}Sb{sub 3}, using atomic pair distribution function (PDF) analysis of x-ray- and neutron-diffraction data, suggests that the material is nanostructured. The local structure of the {beta} phase closely resembles that of the low-temperature {alpha} phase. The {alpha} structure contains ordered zinc interstitial atoms which are not long range ordered in the {beta} phase. A rough estimate of the domain size from a visual inspection of the PDF is < or approx. 10 nm. It is probable that the nanoscale domains found in this study play an important role in the exceptionally low thermal conductivity of {beta}-Zn{sub 4}Sb{sub 3}.},
doi = {10.1103/PHYSREVB.75.134103},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 13,
volume = 75,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}