Two-Magnon Bound States in a Linear Heisenberg Chain with Nearest and Next Nearest Neighbor Interactions
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概要
- 論文の詳細を見る
The bound state problems associated with two magnons in a linear chain of spin 1/2 with nearest and next nearest neighbor exchange integrals, J and αJ, respectively, are studied. The Hamiltonian is rewritten in terms of the Fermi operators in place of spin operators, and an integral equation to determine the bound state energies is obtained. In the cases when the total wave number K of two magnons is π or π/2, analytical solutions are easily obtained. A part of the present results disagrees with Majumdar's one's Computer studies on the bound states are performed for a finite chain composed of spins up to twenty. They are consistent with the analytical results.
- 社団法人日本物理学会の論文
- 1971-02-05
著者
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OGUCHI Takehiko
Department of Physics, Tokyo University of Education
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ONO Ikuo
Department of Physics, Tokyo Institute of Technology
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Oguchi Takehiko
Department Of Physics Tokyo Institute Of Technology
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Ono Ikuo
Department Of Physics Tokyo Metropolitan University
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Ono Ikuo
Department Of Physics Tokyo Institute Of Tchnology
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MIKADO Syogo
Department of Physics, Tokyo Metropolitan University
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Mikado Syogo
Department Of Physics Tokyo Metropolitan University:(present Address) Fujitsu System Laboratory
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Oguchi Takehiko
Department Of Physics Tokyo Insitute Of Technology:the Technological University Of Nagaoka
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Oguchi Takehiko
Department Of Physics Tokyo Metropolitan University:(present Address) Department Of Physics Tokyo In
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