Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

8-2015

Journal or Book Title

Journal of Physics and Chemistry of Solids

Volume

83

First Page

58

Last Page

63

DOI

10.1016/j.jpcs.2015.03.021

Abstract

With the advent of Fe–As based superconductivity it has become important to study how superconductivity manifests itself in details of 57Fe Mössbauer spectroscopy of conventional, Fe-bearing superconductors. To this end, the iron-based superconductor Lu2Fe3Si5 has been studied by 57Fe Mössbauer spectroscopy over the temperature range from 4.4 K to room temperature with particular attention to the region close to the superconducting transition temperature (Tc=6.1 K). Consistent with the two crystallographic sites for Fe in this structure, the observed spectra appear to have a pattern consisting of two doublets over the whole temperature range. The value of Debye temperature was estimated from temperature dependence of the isomer shift and the total spectral area and compared with the specific heat capacity data. Neither abnormal behavior of the hyperfine parameters at or near Tc, nor phonon softening were observed.

Comments

This is a manuscript of an article published as Ma, Xiaoming, Sheng Ran, Hua Pang, Fashen Li, Paul C. Canfield, and Sergey L. Bud'ko. "57Fe Mössbauer study of Lu2Fe3Si5 iron silicide superconductor." Journal of Physics and Chemistry of Solids 83 (2015): 58-63. DOI: 10.1016/j.jpcs.2015.03.021. Posted with permission.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Copyright Owner

Elsevier Ltd.

Language

en

File Format

application/pdf

Published Version

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