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Coexistance of spin-density wave and superconductivity in Ba{sub 1-x}K{sub x}Fe{sub 2}As{sub 2}.

Journal Article · · EPL
The relation between the spin-density wave (SDW) and superconducting order is a central topic in the current research on the FeAs-based high-T{sub c} superconductors. Conflicting results exist in the LaFeAs(O, F)-class of materials, for which whether the SDW and superconductivity are mutually exclusive or they can coexist has not been settled. Here we show that for the (Ba, K)Fe{sub 2}As{sub 2} system, the SDW and superconductivity can coexist in an extended range of compositions. The availability of single crystalline samples and high value of the energy gaps would make the materials a model system to investigate the high-T{sub c} ferropnictide superconductivity.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
SC; Nature Science Foundation of China; Ministry of Science and Technology of China
DOE Contract Number:
AC02-06CH11357
OSTI ID:
951256
Report Number(s):
ANL/XSD/JA-63626
Journal Information:
EPL, Journal Name: EPL Journal Issue: 2009 Vol. 85; ISSN 0295-5075
Country of Publication:
United States
Language:
ENGLISH