Groudstate Properties of Frustrated Spin Systems on a Ladder
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概要
- 論文の詳細を見る
A spin-172 Heisenberg raaodel on a lttdder, which consists of' one ferrounagnetic leg and oneantiferromagnetic leg connected by antif'errorrnagnetic rtrngs, is discussed. The phase transitiora inthe grovrndstate is investigated in svrch a systenu. It is shown that the spontaneous magnetization,m, becoraaes zero if the interchain coupling R is Iar'ger than a critic?t1 value R.. It is fotrnd thatR. ::: 1.134461 :L 0.000001 by the exact diagonalization. In the region R< R., we also find thatthe spontaneous rnagnetization is jcroportioraal to p near the critical point R.. Moreoveran exact eigenstate with the total spin S : O is obtained.
- 社団法人日本物理学会の論文
- 1997-04-15
著者
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TAKAHASHI Minoru
Institute for Solid State Physics, University of Tokyo
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Tsukano M
Univ. Tokyo Tokyo
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TSUKANO Masayoshi
Institute for Solid state Physics,University of Tokyo
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