An Antimony-121 Mössbauer Spectral Study of Yb14MnSb11

Durga Kafle
Department of Physics, Utah State University, USA

Dennis E. Brown
Department of Physics, Northern Illinois University, USA

Charles E. Johnson
Department of Physics, Northern Illinois University,USA

Raphaël P. Hermann
Department of Physics, University of Liège, Belgium

Fernande Grandjean
Department of Physics, University of Liège, Belgium

Gary J. Long
Department of Chemistry, University of Missouri-Rolla, USA

Susan M. Kauzlarich
Department of Chemistry, University of California-Davis, USA

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     Last modified: May 1, 2006

Abstract

The antimony-121 Mössbauer spectra of the Yb14MnSb11 Zintl compound have been obtained between 5 and 300 K. A three-dimensional array of the spectral counts, velocity, and temperature has been simultaneously fit with two components and seven fitted parameters. These fits yield a zero temperature hyperfine field of 2.9(2) T, a Curie temperature of 57(3) K, and a Mössbauer temperature of 182(2) K for Yb14MnSb11.