The effect of low intra-sublattice repulsion on phase diagram of YBa2Cu3O6+x: a Monte Carlo simulation study

Khanna, Rita ; Welberry, T. R. ; Ananthakrishna, G. (1992) The effect of low intra-sublattice repulsion on phase diagram of YBa2Cu3O6+x: a Monte Carlo simulation study Pramana - Journal of Physics, 39 (4). pp. 329-341. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/j_archive/pramana/39/4/329-34...

Related URL: http://dx.doi.org/10.1007/BF02845816

Abstract

We report the results of Monte Carlo simulation of the phase diagram and oxygen ordering in YBa2Cu3O6+x for low intra-sublattice repulsion. At low temperatures, apart from tetragonal (T), orthorhombic (OI) and 'double cell' ortho II phases, there is evidence for two additional orthorhombic phases labelled here asOI andOIII. At high temperatures, there was no evidence for the decomposition of theOI phase into theT andOI phases. We find qualitative agreement with experimental observations and cluster-variation method results.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Oxygen Ordering; Phase Diagram; YBa2Cu3O6+x
ID Code:553
Deposited On:21 Sep 2010 11:45
Last Modified:16 May 2016 11:45

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