3 papers
cond-mat.supr-con2003
Absence of Quantum Metallic Behavior in Disordered Granular Superconductors
Ryusuke Ikeda
We examine the idea, postulated by Phillips et al., that a finite resistivity in limit in disordered granular superconducting (SC) films is explained as a consequence of…
cond-mat.supr-con2002
Comment on "History Effects and Phase Diagram near the Lower Critical Point in YBa_2Cu_3O_{7-δ} Single Crystals"
Ryusuke Ikeda
This is a Comment on an experimental paper by Zhukov et al. on the issue of a lower critical point, seen only in YBCO clean samples, of the first order transition line implying a v…
cond-mat.supr-con2001
Ginzburg-Landau Theory of Vortex Phase Diagram in Layered Type II Superconductor
Ryusuke Ikeda
Recent theoretical understanding of the vortex phase diagram in real layered type II superconductors is briefly described in both cases with fields perpendicular (B \parallel c) an…