Proximity-induced superconductivity within the insulating (Li0.84Fe0.16)OH layers in (Li0.84Fe0.16)OHFe0.98Se
Rustem Khasanov, Huaxue Zhou, Alex Amato, Zurab Guguchia, Elvezio Morenzoni, Xiaoli Dong, Guangming Zhang, Zhongxian Zhao
DOI 10.1103/PhysRevB.93.224512 · Physical Review B
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Abstract
The superconducting and magnetic properties of single crystalline (Li0.84Fe0.16)OHFe0.98Se with the transition temperature Tc≃40 K were studied by means of muon-spin rotation (μSR). The zero-field and field-shift μSR experiments confirm the homogeneity of the sample and the antiferromagnetic ordering within the (Li0.84Fe0.16)OH layers below Tm≃10 K. The temperature dependence of the in-plane component of the magnetic penetration depth (λab) was found to be consistent with gap opening within the superconducting FeSe planes, and it is well described within either the single s−wave gap or two s−wave gaps scenario. The opening of an additional small superconducting gap within the insulating (Li1−xFex)OH layers was detected from the temperature evolution of the out-of plane component of the magnetic penetration λc−2(T). The superconductivity in (Li0.84Fe0.16)OH is most probably induced by the proximity to the superconducting FeSe layers.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (Li0.84Fe0.16)OHFe0.98Se Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | unknown |
| (Li0.84Fe0.16)OHFe0.98Se Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40.5 | 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. | 42 | Pressure not reported | unknown |
| FeSe1-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37 | Pressure not reported | unknown |
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 100 | Pressure not reported | unknown |
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