Evidence of the Vortex-Glass Transition in Homogeneously Disordered Thick Films of a-Mo_xSi_<1-x> : Condensed Matter: Electronic Properties, etc.

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概要

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• We have performed four-tenrminal ac complex resistivity measurements in the linear regime, as well as dc resistivity measurements, for thick a-Mo_xSi_<1-x> films in constant magnetic fields (B = 0.1 and 1 T). The critical behavior associated with the second-order transition has been observed for both dc and ac resistivities. This is the first convincing evidence for the vortex-glass transition (VGT) in the homogeneously disordered low-Tc superconductors containing microscopic pinning centers. On the basis of this result, together with our previous finding of VGT in granular In films, we conclude that the VGT is universal in type-II superconductors with moderate disorder independent of whether pinning is microscopic or microscopic or whether they are high-Tc or low-Tc superconductors.

• 社団法人日本物理学会の論文
• 2000-09-15

著者

• Okuma Satoshi

  Research Center For Very Low Temperature System Tokyo Institute Of Technology

• Arai M

  Research Center For Very Low Temperature System Tokyo Institute Of Technology

• ARAI Masaki

  Research Center for Very Low Temperature System, Tokyo Institute of Technology

関連論文

• Dimensionality Crossover of the Nonlinear Resistance in Quench-Condensed Indium Films
• Voltage Noise of an Amorphous Mo_xSi_ Film near the Superconducting Transition in Magnetic Fields
• Evidence of the Vortex-Glass Transition in Homogeneously Disordered Thick Films of a-Mo_xSi_ : Condensed Matter: Electronic Properties, etc.

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