56 citations · 277 across the 28 of their papers we have counts for
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Phase Separation Induced by Density-Dependent Hopping Terms
Kazuhiro Kuboki
We study phase separation in the model in which the constraint of no double occupancy due to strong electron correlations leads to effective narrowing of the band width. U…
Static spin susceptibility in magnetically ordered states
Kazuhiro Kuboki, Hiroyuki Yamase
We report that special care is needed when longitudinal magnetic susceptibility is computed in a magnetically ordered phase, especially in metals. We demonstrate this by studying s…
Theory of Antiferromagnetic Order in High-Tc Oxides: An Approach Based on Ginzburg-Landau Expansion
Masahiko Hayashi, Yasunari Tanuma, Kazuhiro Kuboki
The mean-field phase diagram of antiferromagnetic order in t-J model has been examined, using the free energy obtained by Ginzburg-Landau (GL) expansion. We extended the usual GL t…
Spontaneous spin current near the interface between ferromagnets and unconventional superconductors
Kazuhiro Kuboki, Hidenori Takahashi
Proximity effects between ferromagnets (F) and superconductors (S) with broken time-reversal symmetry (T) are studied theoretically. For the S side we consider a chiral (p_x \pm ip…
Proximity effects near the interface between d-wave superconductors and ferro/antiferromagnets
Kazuhiro Kuboki
We study the proximity effects near the interface between a d-wave superconductor (S) and a ferromagnet (F) or an antiferromagnet (AF). The S-side (F and AF-side) is described by t…