CLUSTER-VARIATION METHOD FOR THE TRIANGULAR LATTICE GAS I. THREE-SUBLATTICE POINT APPROXIMATION

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The triangular lattice gas is examined as a model for the ordering of Li{sup +} ions in intercalated transition metal dichalcogenides. A three-sublattice Bragg~ Williams (point approximation) calculation illustrates the meaning of the features in the incremental capacity versus concentration curves: (a) minima are associated with ordered structures, (b) sharp maxima (divergences) are caused by the coexistence of ordered and disordered phases over small concentration intervals and (c) smooth maxima can be found at concentrations of no direct relevance to ordering.

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21 p.

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Osorio, R. & Falicov, L. M. August 1, 1980.

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Description

The triangular lattice gas is examined as a model for the ordering of Li{sup +} ions in intercalated transition metal dichalcogenides. A three-sublattice Bragg~ Williams (point approximation) calculation illustrates the meaning of the features in the incremental capacity versus concentration curves: (a) minima are associated with ordered structures, (b) sharp maxima (divergences) are caused by the coexistence of ordered and disordered phases over small concentration intervals and (c) smooth maxima can be found at concentrations of no direct relevance to ordering.

Physical Description

21 p.

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  • Journal Name: Physical Review B

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  • Report No.: LBL-11474
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 1076517
  • Archival Resource Key: ark:/67531/metadc844495

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  • August 1, 1980

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  • May 19, 2016, 9:45 a.m.

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  • June 16, 2016, 1:22 p.m.

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Osorio, R. & Falicov, L. M. CLUSTER-VARIATION METHOD FOR THE TRIANGULAR LATTICE GAS I. THREE-SUBLATTICE POINT APPROXIMATION, article, August 1, 1980; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc844495/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.