This article reviews the current status of precursor superconducting phase fluctuations as a
possible mechanism for pseudogap formation in high-temperature superconductors. In …

In this paper we study the effects of the strong coupling superconductivity on the normal
state electronic structure. We point out that the pseudogap phenomena in High-T c cuprates …

We study superconducting fluctuation effects on the quasi-two-dimensional dp model, which
can describe significant features of high-T c superconducting cuprates. We adopt the …

The anomalous properties of High-T c cuprates are investigated both in the normal state and
in the superconducting state. In particular, we pay attention to the pseudogap in the normal …

Pseudogap phenomena of high-T c cuprates are examined based on the scenario of the
precursor of the strong coupling superconductivity. The “pairing approximation” of the T …

A reduction of the density of states near the Fermi energy in the normal state (pseudogap) of
high-temperature oxide superconductors is examined on the basis of the two-dimensional …

Starting with the Fermi liquid state, we explain the superconductivity in strongly correlated
electron systems. For the overdoped cuprates we adopt the perturbation theory with respect …

We study superconducting fluctuation effects on the quasi-two-dimensional d–p model. We
adopt the fluctuation exchange approximation in order to derive both normal and anomalous …

On the basis of the two-dimensional d–p model, we analyze the correlations among the d-
electrons. We adopt the fluctuation exchange approximation in order to derive both normal …