We consider models of superconductivity where pairing originates in gain of kinetic rather
than potential energy of the carriers. In such systems, a change in the frequency-dependent …

The molecular solids β′-X [Pd (dmit) 2] 2 (where X represents a cation) are typical
compounds whose electronic structures are described by single-orbital Hubbard-type …

Due to advances in computer hardware and new algorithms, it is now possible to perform
highly accurate many-body simulations of realistic materials with all their intrinsic …

A full three-band model for the CuO 2 plane with inclusion of all essential interactions—Cu-
O and OO hopping, repulsion at the copper and oxygen and between them—is considered …

Coupling of charge and spin degrees of freedom is a critical feature of correlated electron
oxides, as represented by the spin-related mechanism of a Cooper pair under high-T c …

An exact diagonalization technique on small lattices is used to calculate the single-particle
spectral function A (k, ω) for one-and three-band Hubbard models at various parameter …

It is discussed that typical features of temperature dependences of such magnetic properties
as spin susceptibility and nuclear magnetic relaxation rate in various Cu oxides together …

Spin-orbit coupling in doped La 2 CuO 4 can result in (1) a novel electron-phonon coupling
involving soft oxygen ''tilting''phonons, and (2) stabilization of a commensurate …

We present a computation of vertical stripes in La 15∕ 8 Sr 1∕ 8 CuO 4 within the LDA+ U
method. We find that Cu centered stripes are unstable toward O centered stripes. The …

Using high-pressure Raman scattering, we have directly measured the pressure
dependence of the in-plane superexchange interaction J in antiferromagnetic La 2 CuO 4 …