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Enhanced superfluid stiffness, lowered superconducting transition temperature, and field-induced magnetic state of the pnictide superconductor LiFeAs

Abstract:

Transverse-field muon-spin rotation measurements performed on two samples of LiFeAs demonstrate that the superfluid stiffness of the superconducting condensate in relation to its superconducting transition temperature is enhanced compared to other pnictide superconductors. Evidence is seen for a field-induced magnetic state in a sample with a significantly suppressed superconducting transition temperature. The results in this system highlight the role of direct Fe-Fe interactions in frustrati...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.79.052508

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
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Journal:
Physical Review B
Volume:
79
Issue:
5
Publication date:
2009-02-01
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Source identifiers:
6194
Language:
English
Keywords:
Pubs id:
pubs:6194
UUID:
uuid:5c352e15-cb90-48b6-a811-5c14d668a47b
Local pid:
pubs:6194
Deposit date:
2012-12-19

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