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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

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics, REF-Physics
Role:
Author
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Journal:
PHYSICAL REVIEW B
Volume:
79
Issue:
5
Publication date:
2009-02-05
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:5c352e15-cb90-48b6-a811-5c14d668a47b
Source identifiers:
6194
Local pid:
pubs:6194

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