Title of article
Evolution of the hyperfine parameters of Fe in superconducting LiFeAs as observed by 57Fe Mِssbauer spectroscopy
Author/Authors
Gao، نويسنده , , W.B. and Lindén، نويسنده , , J. and Wang، نويسنده , , X.C. and Jin، نويسنده , , C.Q. and Tohyama، نويسنده , , T. and Karppinen، نويسنده , , M. and Yamauchi، نويسنده , , H.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
4
From page
1525
To page
1528
Abstract
The LiFeAs superconductor is studied by 57Fe Mössbauer spectroscopy to detect possible changes in the hyperfine parameters in terms of temperature upon passing the superconductivity-transition-temperature at ∼16 K. With decreasing temperature, a rather fast growth of spectral area and isomer shift below T c , peaking at ∼6 K was seen. This indicates an increase in the stiffness of the lattice followed by softening.
Keywords
A. Pnictide superconductors , D. Lattice softening , E. 57Fe Mِssbauer spectroscopy , E. Hyperfine interactions
Journal title
Solid State Communications
Serial Year
2010
Journal title
Solid State Communications
Record number
1767061
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