Thermodynammics of oxygen-vacancy ordering in YBa 2Cu 3O z

A. Berera; L. T. Wille; D. de Fontaine

doi:10.1016/0921-4534(88)90726-5

Thermodynammics of oxygen-vacancy ordering in YBa 2Cu 3O z

A. Berera, L. T. Wille, D. de Fontaine

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

The ordering in the Cu sbnd O basal plane of YBa 2Cu 3O z is investigated as a function of oxygen content and temperature. Several phase diagrams are calculated by means of the Cluster Variation Method applied to asymmetric two-dimensional Ising models. The interaction parameters selected guarantee the stability of the orthorhombic structures near z=7, and, for certain choices, also include a double-cell phase around z=6.5. O sbnd Cu sbnd O correlations are investigated as a function of temperature and concentrations. Calculated orthorhombic to tetragonal transition temperatures and concentrations for various oxygen partial pressures are in excellent agreement with recent experimental data.

Original language	English
Pages (from-to)	598-601
Journal	Physica C: Superconductivity and its Applications
Volume	153
DOIs	https://doi.org/10.1016/0921-4534(88)90726-5
Publication status	Published - 1 Jun 1988

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10.1016/0921-4534(88)90726-5

http://adsabs.harvard.edu/abs/1988PhyC..153..598B

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@article{aae81f70c09946049715e06c64375e85,

title = "Thermodynammics of oxygen-vacancy ordering in YBa 2Cu 3O z",

abstract = "The ordering in the Cu sbnd O basal plane of YBa 2Cu 3O z is investigated as a function of oxygen content and temperature. Several phase diagrams are calculated by means of the Cluster Variation Method applied to asymmetric two-dimensional Ising models. The interaction parameters selected guarantee the stability of the orthorhombic structures near z=7, and, for certain choices, also include a double-cell phase around z=6.5. O sbnd Cu sbnd O correlations are investigated as a function of temperature and concentrations. Calculated orthorhombic to tetragonal transition temperatures and concentrations for various oxygen partial pressures are in excellent agreement with recent experimental data.",

author = "A. Berera and Wille, {L. T.} and {de Fontaine}, D.",

year = "1988",

month = jun,

day = "1",

doi = "10.1016/0921-4534(88)90726-5",

language = "English",

volume = "153",

pages = "598--601",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

}

TY - JOUR

T1 - Thermodynammics of oxygen-vacancy ordering in YBa 2Cu 3O z

AU - Berera, A.

AU - Wille, L. T.

AU - de Fontaine, D.

PY - 1988/6/1

Y1 - 1988/6/1

N2 - The ordering in the Cu sbnd O basal plane of YBa 2Cu 3O z is investigated as a function of oxygen content and temperature. Several phase diagrams are calculated by means of the Cluster Variation Method applied to asymmetric two-dimensional Ising models. The interaction parameters selected guarantee the stability of the orthorhombic structures near z=7, and, for certain choices, also include a double-cell phase around z=6.5. O sbnd Cu sbnd O correlations are investigated as a function of temperature and concentrations. Calculated orthorhombic to tetragonal transition temperatures and concentrations for various oxygen partial pressures are in excellent agreement with recent experimental data.

AB - The ordering in the Cu sbnd O basal plane of YBa 2Cu 3O z is investigated as a function of oxygen content and temperature. Several phase diagrams are calculated by means of the Cluster Variation Method applied to asymmetric two-dimensional Ising models. The interaction parameters selected guarantee the stability of the orthorhombic structures near z=7, and, for certain choices, also include a double-cell phase around z=6.5. O sbnd Cu sbnd O correlations are investigated as a function of temperature and concentrations. Calculated orthorhombic to tetragonal transition temperatures and concentrations for various oxygen partial pressures are in excellent agreement with recent experimental data.

U2 - 10.1016/0921-4534(88)90726-5

DO - 10.1016/0921-4534(88)90726-5

M3 - Article

SN - 0921-4534

VL - 153

SP - 598

EP - 601

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

ER -

Thermodynammics of oxygen-vacancy ordering in YBa 2Cu 3O z

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