Paramagnetic Meissner Effect in Superconducting Single Crystals of Ba_{1-x}K_xBiO_3

Hyun-Tak Kim; H. Minami; W. Schmidbauer; J. W. Hodby; A. Iyo; F. Iga; H. Uwe

doi:10.1007/BF00768444

Paramagnetic Meissner Effect in Superconducting Single Crystals of Ba_{1-x}K_xBiO_3

Superconductivity 2015-06-24 v2

Authors: Hyun-Tak Kim , H. Minami , W. Schmidbauer , J. W. Hodby , A. Iyo , F. Iga , H. Uwe

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Abstract

The paramagnetic Meissner effect (PME) in the field cooled susceptibility has been observed in superconducting single crystals of Ba_{1-x}K_xBiO_3 using magnetometers of Quantum-Design Co.. The PME is similar to that observed in cuprates and Nb superconductors. For the Ba_{0.63}K_{0.37}BiO_3 crystal, the PME is observed in cooling process under the field up to 750 Oe. The PME was not found in the virgin-charged superconducting magnet. The PME is found in a superconductor with trapped flux and may arise from a remnant field, a temperature inhomogeneity near T_c, and a potassium-concentration inhomogeneity.

Keywords

paramagnetic Meissner effect Ba_{1-x}K_xBiO_3 superconducting single crystal trapped flux magnetic susceptibility

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@article{arxiv.cond-mat/0206432,
  title  = {Paramagnetic Meissner Effect in Superconducting Single Crystals of Ba_{1-x}K_xBiO_3},
  author = {Hyun-Tak Kim and H. Minami and W. Schmidbauer and J. W. Hodby and A. Iyo and F. Iga and H. Uwe},
  journal= {arXiv preprint arXiv:cond-mat/0206432},
  year   = {2015}
}

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4 pages, 4 figures

Paramagnetic Meissner Effect in Superconducting Single Crystals of Ba_{1-x}K_xBiO_3

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