Lower Critical Field, Anisotropy, and Two-Gap Features of LiFeAs

K. Sasmal; B. Lv; Z. Tang; F. Y. Wei; Y. Y. Xue; A. M. Guloy; C. W. Chu

doi:10.1103/PhysRevB.81.144512

Lower Critical Field, Anisotropy, and Two-Gap Features of LiFeAs

Superconductivity 2011-05-06 v1

Authors: K. Sasmal , B. Lv , Z. Tang , F. Y. Wei , Y. Y. Xue , A. M. Guloy , C. W. Chu

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Abstract

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.

Keywords

LiFeAs lower critical field anisotropy two-gap superconductors vortex penetration

Cite

@article{arxiv.1004.1387,
  title  = {Lower Critical Field, Anisotropy, and Two-Gap Features of LiFeAs},
  author = {K. Sasmal and B. Lv and Z. Tang and F. Y. Wei and Y. Y. Xue and A. M. Guloy and C. W. Chu},
  journal= {arXiv preprint arXiv:1004.1387},
  year   = {2011}
}

Comments

19 pages, 5 figures

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