A comprehensive review of structure work on high-T c oxides as reported during the years
1987 and 1988 is given. Thirteen structures are refined from X-ray single-crystal and/or …

Integrating metallic halide perovskites with established modern semiconductor technology is
significant for promoting the development of application-level optoelectronic devices. To …

Abstract The superconducting oxide YBa 2 Cu 3 O 6+ δ is found in two structures: a
tetragonal structure (T) that is stoichiometric when δ= 0, and an orthorhombic (O) structure …

In accordance with the spinodal decomposition theory for YBa2Cu3O7− δ (δ≥ 0.2) non-
stoichiometric compound, the structure of two structurally unstable compounds …

The phase diagram of YBa 2 Cu 3 O 7-x is obtained in the lattice-gas model. It is shown that
at 0≤ x≤ 1 and superconducting temperatures two-phase regions do not occur. The O-Cu …

Based on electron microscopy, nonresonant microwave absorption, electron paramagnetic
resonance, and other studies, it is shown that in the YBa 2 Cu 3 O 7− δ system, compositions …

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 study the ground state and weakly excited oxygen superstructures of RBA 2 Cu 3 O 6+ x,
where R= Y or a rare earth, using a model lattice gas Hamiltonian introduced earlier by the …

The resistance of the nonstoichiometric compounds YBa 2 Cu 3 O 6.8 (single crystals,
ceramics) and YBa 2 Cu 3 O 6.8 (Ce)(single crystal) to low-temperature decomposition (at …

Рентгенографически и электронно-микроскопически исследована нестабильность
нестехиометрических соединений YBa 2 Cu 3 O 6.8 (монокристаллы, керамика) и YBa 2 …