Low-Lying Excitations and Magnetization Process of S = 1/2 Coupled Tetrahedral Systems

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概要

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• We investigate low-lying singlet and triplet excitations and the magnetization process of quasi-1D spin systems composed of tetrahedral spin-1/2 clusters. For a class of such models, we found various exact low-lying excitations; some of them are responsible for the first-order transition between two different ground states formed by local singlets. Moreover, we find that there are two different kinds of magnetization plateaus which are separated by a first-order transition.

• 理論物理学刊行会の論文
• 2002-06-28

著者

• Mikeska H-j.

  Institute For Theoretical Physics Hanover University

• TOTSUKA K.

  Department of Physics, Aoyama Gakuin University

• Totsuka K.

  Department Of Physics Aoyama Gakuin University

• Mikeska H.

  Institute for Theoretical Physics, Hanover University

• MIKESKA H-J.

  Institute for Theoretical Physics, Hanover University

関連論文

• Low-Lying Excitations and Magnetization Process of S = 1/2 Coupled Tetrahedral Systems

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