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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 a...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.97.060509

Authors


Smidman, M More by this author
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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Oxford college:
Lincoln College
ORCID:
0000-0002-4405-1075
Adroja, DT More by this author
Hillier, AD More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
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Funding agency for:
Kirschner, FKK
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Funding agency for:
Adroja, DT
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
97
Issue:
6
Pages:
1-6
Publication date:
2018-02-22
Acceptance date:
2018-02-10
DOI:
EISSN:
2469-9969
ISSN:
2469-9950
Pubs id:
pubs:826663
URN:
uri:270c77e0-a0ab-46dd-a1ab-0a9a49a4295d
UUID:
uuid:270c77e0-a0ab-46dd-a1ab-0a9a49a4295d
Local pid:
pubs:826663

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