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Nodal multigap superconductivity in KCa2Fe4As4F2

Abstract:

We find evidence that the newly discovered Fe-based superconductor KCa2Fe4As4F2(Tc=33.36(7) K) displays multigap superconductivity with line nodes. Transverse field muon spin rotation (μSR) measurements show that the temperature dependence of the superfluid density does not have the expected behavior of a fully gapped superconductor, due to the lack of saturation at low temperatures. Moreover, the data cannot be well fitted using either single band models or a multiband s-wave model, yet are ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1103/PhysRevB.97.060509

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
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National Key R&D Program of China More from this funder
Lincoln College, Oxford More from this funder
Royal Society More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
97
Issue:
6
Pages:
060509(R)
Publication date:
2018-02-22
Acceptance date:
2018-02-10
DOI:
ISSN:
2469-9969 and 2469-9950
Pubs id:
pubs:828743
URN:
uri:b959f235-5150-48a9-b7b1-3a5629b0366d
UUID:
uuid:b959f235-5150-48a9-b7b1-3a5629b0366d
Local pid:
pubs:828743
Keywords:

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