G Ceder, M Asta, M de Fontaine - Physica C: Superconductivity, 1991 - Elsevier
We have computed the low-temperature portion of a phase diagram for the YBa 2 Cu 3 O z compound between the stoichiometries z= 6.5 and z= 7. Apart from the OI and OII phases …
T Krekels, H Zou, G Van Tendeloo, D Wagener… - Physica C …, 1992 - Elsevier
Oxygen ordering has been investigated in superconducting ABa 2 Cu 3 O 7− δ ceramic materials with A= Er, Nd, Sm and Yb well as in samples of this type with the rate earth A …
The emergence of the cell-doubled (OII) and both cell-tripled (OIII and OIII*) phases of YBa 2 Cu 3 O 6+ x are observed on oxygen-chain-equalized and order-stabilized pair samples at …
N Klein, U Poppe, N Tellmann, H Schulz… - IEEE transactions on …, 1993 - ieeexplore.ieee.org
The authors have studied the microwave surface resistance R/sub S/at 19 GHz of epitaxial YBa/sub 2/Cu/sub 3/O/sub 7-x/films prepared by high oxygen pressure DC-sputtering on …
V Plakhty, A Stratilatov, Y Chernenkov… - Solid state …, 1992 - Elsevier
By means of X-Ray diffraction on single crystals of YBa 2 Cu 3 O 6+ x with a well defined oxygen content it is shown that the ortho-II phase 2a 0 xb 0 exists in the range of 0.40 (3)≤ …
In the framework of the lattice-gas model the investigation of various possible forms of phase diagrams of R Ba 2 Cu 3 O 7− x (R= rare earth) superconductors is carried out. The …
We have calculated several thermodynamic properties of a lattice gas mode with screened Coulomb repulsions V 1 for ith nearest neighbors up to i= 5, but for second-nearest …
A two dimensional lattice gas model describing the ordering in the Cu-O basal plane of YBa 2 Cu 3 O z is studied using Monte Carlo techniques. The phase diagram is found to consist …
The computation of alloy stability and properties requires the use of an adequate model. It is shown that the Ising model correctly describes real-alloy thermodynamics if the Ising …