Vacancy ordering in the basal plane of YBa2Cu3O(sub)z

L. T. Wille; A. Berera; D. Defontaine; S. C. Moss

Vacancy ordering in the basal plane of YBa2Cu3O(sub)z

L. T. Wille, A. Berera, D. Defontaine, S. C. Moss

School of Physics and Astronomy

Research output: Contribution to conference › Paper › peer-review

Abstract / Description of output

The ordering in the Cu-O basal plane of the high T sub c superconductor YBa sub 2 Cu sub 3 O sub z is investigated. Asymmetric pairwise interactions between nearest and next nearest neighbors are assumed. Ordering instabilities in two-dimensional k-space are mapped out as a function of the interactions and the ordered ground state superstructures consisting of occupied and empty oxygen sites are determined. A temperature-composition phase diagram is calculated by means of the Cluster Variation Method. The thermodynamic behavior of the superconducting compound is discussed in the light of these results.

Original language	English
Publication status	Published - 1 Nov 1987

Keywords / Materials (for Non-textual outputs)

Barium Oxides
Copper Oxides
Phase Diagrams
Superconductors
Thermodynamics
Voids
Yttrium Oxides
Ground State
Oxygen

Access to Document

http://adsabs.harvard.edu/abs/1987mrs..meetT....W

Cite this

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title = "Vacancy ordering in the basal plane of YBa2Cu3O(sub)z",

abstract = "The ordering in the Cu-O basal plane of the high T sub c superconductor YBa sub 2 Cu sub 3 O sub z is investigated. Asymmetric pairwise interactions between nearest and next nearest neighbors are assumed. Ordering instabilities in two-dimensional k-space are mapped out as a function of the interactions and the ordered ground state superstructures consisting of occupied and empty oxygen sites are determined. A temperature-composition phase diagram is calculated by means of the Cluster Variation Method. The thermodynamic behavior of the superconducting compound is discussed in the light of these results.",

keywords = "Barium Oxides, Copper Oxides, Phase Diagrams, Superconductors, Thermodynamics, Voids, Yttrium Oxides, Ground State, Oxygen",

author = "Wille, {L. T.} and A. Berera and D. Defontaine and Moss, {S. C.}",

year = "1987",

month = nov,

day = "1",

language = "English",

}

TY - CONF

T1 - Vacancy ordering in the basal plane of YBa2Cu3O(sub)z

AU - Wille, L. T.

AU - Berera, A.

AU - Defontaine, D.

AU - Moss, S. C.

PY - 1987/11/1

Y1 - 1987/11/1

N2 - The ordering in the Cu-O basal plane of the high T sub c superconductor YBa sub 2 Cu sub 3 O sub z is investigated. Asymmetric pairwise interactions between nearest and next nearest neighbors are assumed. Ordering instabilities in two-dimensional k-space are mapped out as a function of the interactions and the ordered ground state superstructures consisting of occupied and empty oxygen sites are determined. A temperature-composition phase diagram is calculated by means of the Cluster Variation Method. The thermodynamic behavior of the superconducting compound is discussed in the light of these results.

AB - The ordering in the Cu-O basal plane of the high T sub c superconductor YBa sub 2 Cu sub 3 O sub z is investigated. Asymmetric pairwise interactions between nearest and next nearest neighbors are assumed. Ordering instabilities in two-dimensional k-space are mapped out as a function of the interactions and the ordered ground state superstructures consisting of occupied and empty oxygen sites are determined. A temperature-composition phase diagram is calculated by means of the Cluster Variation Method. The thermodynamic behavior of the superconducting compound is discussed in the light of these results.

KW - Barium Oxides

KW - Copper Oxides

KW - Phase Diagrams

KW - Superconductors

KW - Thermodynamics

KW - Voids

KW - Yttrium Oxides

KW - Ground State

KW - Oxygen

M3 - Paper

ER -

Vacancy ordering in the basal plane of YBa2Cu3O(sub)z

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

Access to Document

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Cite this