Phys. Rev. E 64, 036126 (2001) [6 pages]Exact results of a generalized Wu model with two- and four-spin interactionsReceived 16 January 2001; published 30 August 2001 The mixed spin-1/2 and spin-SB Ising model with two- and four-spin interactions on the honeycomb lattice is studied by the use of a generalized star-triangle transformation. The exact results for the phase diagrams, magnetization, correlation functions, internal energy, specific heat, and quadrupolar susceptibility are obtained and discussed. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.64.036126
DOI:
10.1103/PhysRevE.64.036126
PACS:
75.10.Hk, 05.50.+q
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