1985 年 54 巻 5 号 p. 1677-1680
It is argued that impurities in a system with frustrating interactions play a similar role as random fields in a usual ferromagnetic system and destroy a periodic spin structure of the system. Results of Monte Carlo studies of a dilute antiferromagnetic Ising model on the triangular and the hexagonal lattices, which confirm our arguments, are also presented.
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