Frustrated Spin System in θ-(BEDT-TTF)_2RbZn (SCN)_4
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概要
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The origin of the spin gap behavior in t,he lo'xv-tenuperattrre dinuerized phase of #-(BEDTTTF)zRbZn(SCN),j has beeza theoreticall3' sttudied based on the Hartree-Fock approximation forthe on-site Coulonab interactiora at ?tbsolttte zero. Calctrlations show' that, in the patraraaeter regionconsidered to be relevant to this counpottnd, atntiferrounagnetic ordering is stabilized betxx'eendiraaers consisting of pairs of IIIOICICLIICS cotrpled witla the largest trattsf'er integral. Based on thisresttlt an efFectix'e localized spin 1 /2 taaodel is constrtrcted xvltich indicates the existence of' thefrtnstration 2[l11OI1g spins. This f'rttstration ta?ay restrlt in tlae f'orrnatiott of spin gap.
- 社団法人日本物理学会の論文
- 1998-06-15
著者
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Seo Hitoshi
Department Of Physics Faculty Of Science University Of Tokyo
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Fukuyama Hidetoshi
Department Of Applied Physics Faculty Of Science Tokyo University Of Science
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Fukuyama Hidetoshi
Department of Applied Physics and Research Institute for Science and Technology, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
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