Evidence of nodeless superconductivity in FeSe0.85 from a muon-spin-rotation study of the in-plane magnetic penetration depth

Khasanov R, Conder K, Pomjakushina E, Amato A, Baines C, Bukowski Z, Karpinski J, Katrych S, Klauss H-H, Luetkens H, Shengelaya A & Zhigadlo ND
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Khasanov, R., Conder, K., Pomjakushina, E., Amato, A., Baines, C., Bukowski, Z., … Zhigadlo, N. D. (2008). Evidence of nodeless superconductivity in FeSe0.85 from a muon-spin-rotation study of the in-plane magnetic penetration depth. Physical Review B, 78(22), 220510 (4 pp.). https://doi.org/10.1103/PhysRevB.78.220510
https://www.dora.lib4ri.ch/psi/islandora/object/psi:19139

The in-plane magnetic penetration depth λab of the iron selenide superconductor with the nominal composition FeSe0.85 was studied by means of muon-spin rotation. The measurements of λab-2(T) are inconsistent with a simple isotropic s-wave type of the order parameter but are rather in favor of two-gap (s+s) and anisotropic s-wave order parameter symmetries, thus implying that the superconducting energy gap in FeSe0.85 contains no nodes.

Details
Publication Type

Journal Article

Title

Evidence of nodeless superconductivity in FeSe0.85 from a muon-spin-rotation study of the in-plane magnetic penetration depth

Author(s)

Khasanov, R. (3501 Bulk-μSR)

Conder, K. (3602 Solid State Chemistry)

Pomjakushina, E. (3602 Solid State Chemistry)

Amato, A. (3501 Bulk-μSR)

Baines, C. (3501 Bulk-μSR)

Bukowski, Z.

Karpinski, J.

Katrych, S.

Klauss, H.-H.

Luetkens, H. (3500 Muon Spin Spectroscopy)

Shengelaya, A.

Zhigadlo, N.D.

Journal

Physical Review B

Volume

78

Issue

22

Start Page

220510 (4 pp.)

Publication Year

2008

Peer Review

Yes

Facility

SmuS

Beamline

GPS
LTF

Collection

PSI Publications

Additional Information

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