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57Fe Mössbauer study of Lu2Fe3Si5 iron silicide superconductor

Journal Article · · Journal of Physics and Chemistry of Solids
 [1];  [2];  [3];  [3];  [2];  [2]
  1. Lanzhou Univ. (China); Ames Lab., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)
  3. Lanzhou Univ. (China)
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. 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. Furthermore, 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.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1227289
Alternate ID(s):
OSTI ID: 1246695
Report Number(s):
IS--J-8600; PII: S0022369715000761
Journal Information:
Journal of Physics and Chemistry of Solids, Journal Name: Journal of Physics and Chemistry of Solids Journal Issue: C Vol. 83; ISSN 0022-3697
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

57 Fe Mössbauer study of stoichiometric iron-based superconductor CaKFe 4 As 4 : a comparison to KFe 2 As 2 and CaFe 2 As 2 journal July 2017
57 Fe Mössbauer and magnetic studies of Th 7 Co 2.557 Fe 0.5 and Th 7 Ni 2.557 Fe 0.5 superconductors journal September 2019

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