Ferrimagnetism of dilute Ising antiferromagnets
نویسندگان
چکیده
منابع مشابه
Dilute random-field Ising models and uniform-field antiferromagnets.
The order-parameter susceptibility χ of dilute Ising models with random fields and dilute antiferromagnets in a uniform field are studied for low temperatures and fields with use of low-concentration expansions, scaling theories, and exact solutions on the Cayley tree to elucidate the behavior near the percolation threshold at concentration pc. On the Cayley tree, as well as for d>6, both model...
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The susceptibility series presented by Aharony, Harris, and Meir [Phys. Rev. B 32 3203 (1985)] for the random-field Ising model and dilute antiferromagnet in a field are reanalyzed. This reanalysis utilizes improved methods of power-series analysis, more recent pc estimates, and a redefined constant term. We also invoke updated exponent estimates for comparison with our results, and find that n...
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A systematic Monte Carlo investigation of dilute Ising antiferromagnets in a uniform field as function of both dilution and ratio a! of nnn to nn interactions on a cubic lattice is presented. A tricritical point is found in the range of dilution 0 5 p 5 0.3 for a ratio a = -0.5. Increasing p makes the first order region to shrink. On the other hand increasing or enlarges it. We present a new pr...
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ژورنال
عنوان ژورنال: Low Temperature Physics
سال: 2014
ISSN: 1063-777X,1090-6517
DOI: 10.1063/1.4850534