Einstein Oscillators in Thallium Filled Antimony Skutterudites

Author

Raphaël P. Hermann
Rongying Jin
Werner Schweika
Fernande Grandjean, Missouri University of Science and TechnologyFollow
David G. Mandrus
Brian C. Sales
Gary J. Long, Missouri University of Science and TechnologyFollow

Abstract

Heat capacity measurements were performed on Tl_0.8Co₄Sb₁₁Sn. An Einstein vibrating behavior for the thallium atoms was found. The inelastic neutron scattering measurements on T_0.8Co₄Sb₁₁Sn, Tl_0.5Co_3.5Fe_0.5Sb₁₂, and Tl_0.8Co₃FeSb₁₂ showed a localized vibrational mode, which confirmed this Einstein vibrational behavior. Furthermore, the 56±2 K temperature of the Einstein vibrational mode obtained from the heat capacity measurements showed excellent agreement with the 5 meV energy or 57±2 K values obtained from the neutron scattering measurements.

Recommended Citation

R. P. Hermann et al., "Einstein Oscillators in Thallium Filled Antimony Skutterudites," Physical Review Letters, vol. 90, no. 13, pp. 135505/1 - 135505/4, American Physical Society (APS), Apr 2003.

The definitive version is available at https://doi.org/10.1103/PhysRevLett.90.135505

Department(s)

Chemistry

Keywords and Phrases

Antimony; Cobalt Compounds; Electronic Density Of States; Molecular Vibrations; Neutron Scattering; Oscillations; Specific Heat Of Solids; Temperature; Einstein Oscillators; Inelastic Neutron Scattering; Skutterudites; Thallium Compounds

International Standard Serial Number (ISSN)

0031-9007

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2003 American Physical Society (APS), All rights reserved.

Publication Date

01 Apr 2003