Cluster expansions in cooperative Jahn-Teller T-systems

A cluster series is established for the cooperative Jahn-Teller-T-e and theT-t-systems in the simple cubic and square lattices. We calculate the phase transition temperature Tc, the specific heat and the “susceptibility” in zero order and in 2-site cluster approximation. Additionally in the simpler T-e case the transition temperature Tc is determined also for 3-site and 4-site clusters. We compare our results with those of other approaches.

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Year of publication:	1979
Authors:	Nusser, H. ; Wagner, M.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 98.1979, 1, p. 118-138
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011059873