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

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

2002-06-23

arxiv.org/abs/cond-mat/0206432v2

J. Low Tem. Phys. 105(3/4), 557 (1996)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures

Scientific paper

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.

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