The Van Hove singularity (VHS) provides a paradigm for the study of the role of peaks in the
density of states (dos) on electronic properties. More importantly, it appears to play a major …

We review and analyze experiment results of the specific heat, the muon–spin rotation (μSR)
relaxation rate and the fluctuation contributions to the magnetization and dc conductivity of …

The superconducting critical temperature T c of YBa 2 Cu 3 O x single crystals (6.35≲ x≲ 7)
has been measured resistively as a function of pressure P (0≤ P≲ 20 kbar). The initial rate …

Experimental results of the muon-spin-relaxation rate, the pressure dependence coefficient
and the isotope effect coefficient of the transition temperature of extreme type-II …

A model is proposed for the pressure dependence of T c based on the inverted parabolic
relationship between T c and the hole carrier density n that takes into account the fact that T …

A new high precision investigation of the unit cell geometry as a function of the oxygen
content is presented for YBa2Cu3O6+ x. The differences from earlier work by other groups …

A synthetic procedure has been developed for the yttrium‐barium‐copper oxides, in terms of
a liquid‐mixed citrate precursor and the use of yttrium oxide, barium carbonate, and basic …

A structural phase transformation in the CuO 2 planes of YBa 2 Cu 3 O x has been observed
at the onset of the overdoped regime, x= 6.95. We have measured as a function of x the …

The pressure dependence of the magnetic penetration depth λ in polycrystalline samples of
YBa 2 Cu 3 O x with different oxygen concentrations x= 6.45, 6.6, 6.8, and 6.98 was studied …

By considering the recent widely accepted dispersion of electronic structure in cuprates, we
analyze the pressure effect on the superconducting transition temperature T c in Y-Ba-Cu-O …