Vortex Glasses and Current Relaxation in High-T_c Superconductors

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概要

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• Recent observations of a stretched exponential relaxation of the current on a ceramic Y-Ba-Cu-O by Masuda et al. and of the torque on a ceramic La-Ba-Cu-O by Giovannella et al. are suggestive of the existence of a hierarchically organized vortex glass. We obtain the I-V characteristics for such a vortex glass to show that it is a superconducting state with zero resistance below the glass-transition temperature. The formation of pinning centers and its relevance to phase transitions are discussed briefly.

• 社団法人日本物理学会の論文
• 1994-09-15

著者

• Sasada T

  Shonan Inst. Technol. Fujisawa

• Sasada Tomohei

  Shonan Institute Of Technology

関連論文

• Vortex Glasses and Current Relaxation in High-T_c Superconductors
• Binary Decoration and Diffraction Pattern in One-Dimensional Lattice Gas Model : Condensed Matter and Statis tical Physics
• Existence of Critical Disorder and Vanishing of Mass by Replica-Symmetry Breaking in Random Sine-Gordon Model

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