Chiral Ordering of XY Spin Glasses in Two and Three Dimensions-Domain-Wall Renormalization-Group Studies
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概要
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The nearest-neighbor XY spin glasses with A-J distribution of interactions arestudied in both two and three dimensions by use of the domain-wall renormalizationgroup method at zero temperature, with a focus on the chiral ordering. In two dimensions, both the chiral and ,X'F-spin orientational components are found to order atzero temperature with mutually different correlation-length exponents vzI.2 andv.>2.6, respectively. In three dimensions, by contrast, we find that the system ex-hibits a finite-temperature chiral spin-glass ordering accompanied with a broken reflec-lion symmetry with orientational symmetry preserved, whereas the conventionalorientational spin-glass ordering occurs only at zero temperature.
- 社団法人日本物理学会の論文
- 1991-02-15
著者
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TANEMURA Masaharu
Institute of Statistical Mathematics
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Kawamura Hikaru
Department Of Earth And Space Science Faculty Of Science Osaka University
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