Role of magnetism in superconductivity of BaFe2As2: Study of 5d Au-doped crystals
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Florida, Gainesville, FL (United States)
We investigate properties of BaFe2As2 (122) single crystals upon gold doping, which is the transition metal with the highest atomic weight. The Au substitution into the FeAs-planes of 122 crystal structure (Au-122) is only possible up to a small amount of ~3%. We find that 5d is more effective in reducing magnetism in 122 than its counter 3d Cu, and this relates to superconductivity. We provide evidence of short-range magnetic fluctuations and local lattice inhomogeneities that may prevent strong percolative superconductivity in Ba(Fe1-xAux)2As2.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725; FG02-86ER45268
- OSTI ID:
- 1286899
- Alternate ID(s):
- OSTI ID: 1224601
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 9; ISSN 1098-0121
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 9 works
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