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Title
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On the asymmetric next-nearest-neighbor ising model of oxygen ordering in
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Author
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Abstract
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| Basic results concerning oxygen ordering in the superconducting compound YBa2Cu3Oz are briefly summarized. It is shown that, at equilibrium, only infinite-chain structures can be stabilized and those models based on hypothetical (and actually nonphysical) screened Coulomb interactions cannot produce stable ground states. It is suggested that diffraction data (neutrons, X-rays, electrons) from oxygen-lean samples are indicative of metastable displacive transformations, and are not directly related to oxygen ordering. |
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Language
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English
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Source (journal)
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Europhysics letters / Société européenne de physique. - Les Ulis, 1986, currens
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Publication
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Les Ulis
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Les éditions de physique
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1992
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ISSN
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0295-5075
1286-4854
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DOI
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10.1209/0295-5075/19/3/013
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Volume/pages
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19
:3
(1992)
, p. 229-234
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ISI
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A1992HZ34700013
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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