Probing the superconducting gap structure of (Li1−xFex)OHFeSe
M. Smidman, G. M. Pang, H. X. Zhou, N. Z. Wang, W. Xie, Z. F. Weng, Y. Chen, X. L. Dong, X. H. Chen, Z. X. Zhao, H. Q. Yuan
DOI 10.1103/PhysRevB.96.014504 · Physical Review B
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Abstract
We report measurements of the London penetration depth [Δλ(T)] of the recently discovered iron-based superconductor (Li1−xFex)OHFeSe, in order to characterize the nature of the superconducting gap structure. At low temperatures, Δλ(T) displays nearly temperature-independent behavior, indicating a fully open superconducting gap. We also analyze the superfluid density ρs(T), which cannot be well accounted for by a single-gap isotropic s-wave model but is consistent with either a two-gap model, a model for the orbital selective s×τ3 state, or anisotropic s-wave superconductivity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure not reported | unknown |
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37 | Pressure not reported | unknown |
| (Li1-xFex)OHFeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | onset |
| (Li1-xFex)OHFeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37 | Pressure not reported | onset |
| (Li1-xFex)OHFeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | onset |
| (Li1-xFex)OHFeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 39 | Pressure not reported | onset |
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