89Y NMR linewidth, Knight shift, spin-echo dephasing, and spin-lattice relaxation measurements have been carried out in Y 1-xCaxBa2Cu3Oy. Underdoped and overdoped samples have been obtained by means of Y3+ for Ca2+ ...

A system of self-consistent integral equations for the superconducting gap is formulated and solved taking account of the instability of the normal phase of bilayer cuprates against charge-density waves. The critical ...

© 2014, Pleiades Publishing, Inc. For a two-dimensional optimally doped antiferromagnet with spin S =1/2, we study the temperature dependence of the electrical resistivity ρ(T), Hall coefficient RH(T), and thermopower Q(T). ...

We present a simple derivation of an expression for the superfluid density ns ∝1/ λ2in superconductors with the tight binding energy dispersion. The derived expression is discussed in detail because of its distinction from ...

We adopt a t1-t2-t3-J-G model for explanation of x = 1/8 anomaly in La2-xSrxCuO4 family compound. The calculated charge susceptibility shows a maximum near Q = (π, π) at intermediate temperatures and near (π, π/2) as ...

The relaxation function theory for a doped two-dimensional Heisenberg antiferromagnetic system in the paramagnetic state for all wave vectors through the Brillouin zone is presented in view of the low frequency response ...

We present the relaxation function theory for dynamic spin susceptibility for doped two-dimensional S = 1/2 Heisenberg antiferromagnetic (AF) system in the paramagnetic state as obtained by means of the Mori-Zwanzig ...

The relaxation function theory of doped two-dimensional S=1/2 Heisenberg antiferromagnetic (AF) systems in the paramagnetic state is presented taking into account the hole subsystem as well as both the electron and AF ...

The method of projection operators is applied to the two-dimensional model of strongly correlated charge carriers to explain the magnetic properties of weakly doped layered cuprates in the paramagnetic state. The theory ...

Using a Mori-Zwanzig projection operator procedure the relaxation function theory of doped two-dimensional S=1\2 Heisenberg antiferromagnetic (AF) system in the paramagnetic state is presented taking into account the hole ...