Antimony-121 Mössbauer Spectral Study of α-Zn₄Sb₃

Author

Raphäel P. Hermann
Fernande Grandjean, Missouri University of Science and TechnologyFollow
Tsi-Chi Chen
Dennis E. Brown
Charles E. Johnson
G. Jeffrey Snyder
Gary J. Long, Missouri University of Science and TechnologyFollow

Abstract

The Mössbauer spectra of α-Zn₄Sb₃, a compound that is best formulated as α-Zn₁₃Sb₁₀ or (Zn²⁺)₁₃(Sb^3-)₆(Sb₂ ^4-)₂, have been measured between 5 and 120 K. The resulting six spectra have been simultaneously fit with two components in the ratio of 3:2 corresponding to the Sb^3- and Sb^2- ions identified in this valence semiconductor. The fits yield temperature independent isomer shifts of -8.17(2) and -9.73(2) mm/s and quadrupole interactions of -4.9(2) and 0 mm/s for the Sb^3- and Sb^2- ions, respectively; the corresponding Mössbauer temperatures are 197(5) and 207(5) K, temperatures that are lower than the Debye temperature of ß-Zn₄Sb₃. The isomer shifts correspond to electronic configurations between 5s²5p⁶ and 5s^1.755p ^4.01 for the Sb^3- ions and between 5s²5p ⁵ and 5s^1.805p^3.38 for the Sb^2- ions, configurations that are in good agreement with the expected configurations for this valence semiconductor and with the results of band structure calculations.

Recommended Citation

R. P. Hermann et al., "Antimony-121 Mössbauer Spectral Study of α-Zn₄Sb₃," Inorganic Chemistry, vol. 46, no. 3, pp. 767 - 770, American Chemical Society (ACS), Feb 2007.

The definitive version is available at https://doi.org/10.1021/ic061533x

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0020-1669

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Feb 2007