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dc.contributor.author | Todo, Synge | en |
dc.contributor.author | Yasuda, Chitoshi | en |
dc.contributor.author | Kato, Kiyoshi | en |
dc.contributor.author | Harada, Kenji | en |
dc.contributor.author | Kawashima, Maoki | en |
dc.contributor.author | Miyashita, Seiji | en |
dc.contributor.author | Takayama, Hajime | en |
dc.contributor.alternative | 原田, 健自 | ja |
dc.date.accessioned | 2015-10-28T05:45:10Z | - |
dc.date.available | 2015-10-28T05:45:10Z | - |
dc.date.issued | 2000-01-01 | - |
dc.identifier.issn | 0375-9687 | - |
dc.identifier.uri | http://hdl.handle.net/2433/200800 | - |
dc.description | Published on behalf of Journal of the Physical Society of Japan | en |
dc.description.abstract | Quantum phase transition of site-diluted and bond-diluted Heisenberg antiferromagnets on square lattices is studied. By using the novel continuous-time loop algorithm, we perform quantum Monte Carlo simulations on quite larger lattices at extremely lower temperatures than the previous numerical studies. It is found that the antiferromagnetic long-range order at T = 0 persists so long as a cluster of magnetic sites percolates, that is, the critical concentration is equal to the classical percolation threshold, in both of the site-diluted and bond-diluted cases. Furthermore, we find that some critical exponents, such as the magnetization exponent β, are non-classical and strongly depend on the spin size S. On the other hand, we show that the correlation-length exponent ν is universal and is equal to the classical value (ν=4/3). | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Oxford University Press | en |
dc.rights | © The Physical Society of Japan | en |
dc.title | Quantum Phase Transition of Two-Dimensional Diluted Heisenberg Antiferromagnet | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.ncid | AA00791466 | - |
dc.identifier.jtitle | Progress of Theoretical Physics Supplement | en |
dc.identifier.volume | 138 | - |
dc.identifier.spage | 507 | - |
dc.identifier.epage | 512 | - |
dc.relation.doi | 10.1143/PTPS.138.507 | - |
dc.textversion | publisher | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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