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Applied Physics Letters / Volume 99 / Issue 26 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 99, 261912 (2011); http://dx.doi.org/10.1063/1.3672198 (3 pages)

Thermal expansion coefficients of Bi2Se3 and Sb2Te3 crystals from 10 K to 270 K

X. Chen1, H. D. Zhou2, A. Kiswandhi2, I. Miotkowski3, Y. P. Chen3, P. A. Sharma4, A. L. Lima Sharma4, M. A. Hekmaty5, D. Smirnov2, and Z. Jiang1

1School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
2National High Magnetic Field Laboratory, Tallahassee, Florida 32310, USA
3Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA
4Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
5Sandia National Laboratories, Livermore, California 94550, USA

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(Received 12 September 2011; accepted 27 November 2011; published online 30 December 2011)

Lattice constant of Bi2Se3 and Sb2Te3 crystals is determined by x-ray powder diffraction measurement in a wide temperature range. Linear thermal expansion coefficients (α) of the crystals are extracted, and considerable anisotropy between α|| and α⊥ is observed. The low temperature values of α can be fit well by the Debye model, while an anomalous behavior at above 150 K is evidenced and explained. Grüneisen parameters of the materials are also estimated at room temperature.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

antimony compounds, bismuth compounds, Gruneisen coefficient, lattice constants, thermal expansion, X-ray diffraction

PACS

  • 65.40.De

    Thermal expansion; thermomechanical effects

  • 61.66.Fn

    Inorganic compounds

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3672198

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    M. Z. Hasan and C. L. Kane, Rev. Mod. Phys. 82, 3045 (2010).

    C. L. Choy, S. P. Wong, and K. Young, Phys. Rev. B 29, 1741 (1984).

    G. E. Shoemake, J. A. Rayne, and R. W. Ure, Phys. Rev. 185, 1046 (1969).


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