Cluster-variation method for the triangular lattice gas |
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| Authors: | R. Osório L.M. Falicov |
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| Affiliation: | Materials and Molecular Research Division, Lawrence Berkeley Laboratory and Department of Physics, University of California, Berkeley, CA 94720, U.S.A. |
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| Abstract: | A triangular lattice gas with nearest-neighbor repulsions and three-particle attractions is examined in a three-sublattice triangle approximation as a model for lithium intercalation in the transition metals dichalcogenides. Order-disorder phase diagrams and thermodynamic functions are computed. Some peaks in the incremental capacity as function of concentration in the experimental data of Thompson are reproduced in our model. |
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