Theoretical Possibility of First-Order Phase Transition in Disordered Spin-Peierls Systems

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概要

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• [ttaptrrity ef['ects on spin-Peierls (SP) systeutas are investigstted by trsing the phase H?ttniItoni;rnincltrding nae?rn field intercluarin itaterstctions at T : 0. It is sluown th;tt itaaptrrities indtrce ?rntif'errotnagnetic long-r;tnge order ?tnd Ch?rt there is a critical density, above wlaich the SP latticedistortion disstppears. Botla first-order ttnd second-order ph?tse transitiotas are possible at thiscritical density. Tlae f'orztaer is realized iua SP systetaxs xx'ith 21 relatixzely large interchsrin interaction.Otrr restrlts atr'e qtr?tIitartix'e1y consisterut xvith the recent exjcerirtaentatl report on Ctr(.NIg)Ge03 JoyXI;'tsrrcla et cl. [Plays. 1{ev. Left. 80 (1998) 4566.1

• 社団法人日本物理学会の論文
• 1999-09-15

著者

• Saito Masako

  Institute For Solid State Physics University Of Tokyo

関連論文

• Theoretical Possibility of First-Order Phase Transition in Disordered Spin-Peierls Systems

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