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Effect of Impurities on the Phase Transition Temperature of a Two‐Dimensional Ising Lattice with Interaction between Some of the Next‐Nearest Neighbours
Author(s) -
Grozdev K. I.,
Kosevich A. M.
Publication year - 1974
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220660107
Subject(s) - impurity , condensed matter physics , lattice (music) , nearest neighbour , exchange interaction , k nearest neighbors algorithm , ising model , phase transition , chemistry , materials science , physics , ferromagnetism , organic chemistry , artificial intelligence , computer science , acoustics
The effect of interstitial impurities on the thermodynamical properties of a plane Union Jack lattice was studied. The impurities are located on the next‐nearest neighbour bonds only and affect the exchange interaction between the corresponding lattice sites. The phase transition temperature as a function of the impurity concentration is obtained exactly. The case in which the impurity cuts the exchange bond between the next‐nearest neighbours is described in detail.