Lower critical field, anisotropy, and two-gap features of LiFeAs

Article

关键词: ANDREEV-REFLECTION SPECTROSCOPY;    NODELESS SUPERCONDUCTING GAPS;   

DOI  :  10.1103/PhysRevB.81.144512

来源: SCIE

【 摘 要 】

The magnetic properties of LiFeAs, as single crystalline and polycrystalline samples, were investigated. The lower critical field deduced from the vortex penetration of two single crystals appears to be almost isotropic with a temperature dependence closer to that of two-gap superconductors. The parameters extracted from the reversible magnetizations of sintered polycrystalline samples are in good agreement with those from the single-crystal data.

【 授权许可】

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