Quantum Narrowing Effect in a Spin-Peierls System with Quantum Lattice Fluctuation
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概要
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We investigate a one-dimentional S = 1/2 antiferromagnetic Heisenberg model coupled to quantum lattice vibration using a quantum Monte Carlo method. We study the ground-state lattice fluctuation where the system shows a characteristic structure factor. We also study the mass dependence of magneticproperties such as the magnetic susceptibility and the magnetic excitation spectrum. For heavy mass, the system shows the same behavior as the case of classical lattice vibration. On the other hand, for lightmass, magnetic properties coincide with those of the static uniform chain. We investigate the physical mechanism of this behavior and propose the picture of quantum narrowing.
- 社団法人日本物理学会の論文
- 2003-02-15
著者
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MIYASHITA Seiji
Department of Applied Physics, Graduate School of Engineering, The University of Tokyo
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Onishi H
Department Of Applied Physics Graduate School Of Engeneering University Of Tokyo : Advanced Science
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Onishi Hiroaki
Department Of Neurosurgery Brain And Nerve Center Asanogawa General Hospital
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Onishi Hiroaki
Department Of Applied Physics Graduate School Of Engeneering University Of Tokyo : Advanced Science
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Miyashita S
Univ. Tokyo Tokyo Jpn
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Miyashita Seiji
Department Of Physics University Of Tokyo
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Miyashita Seiji
Department Of Physics School Of Science The University Of Tokyo
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Miyashita Seiji
Graduate School Of Human And Environmental Studies Kyoto University
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Miyashita Seiji
Department Of Applied Physics Graduate School Of Engineering The University Of Tokyo
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Miyashita Seiji
Crest Jst
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MIYASHITA Seiji
Department of Applied Physics, University of Tokyo
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MIYASHITA Seiji
Department of Applied Physics, School of Engineering, University of Tokyo
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MIYASHITA Seiji
Department of Physics, School of Science, The University of Tokyo
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MIYASHITA Seiji
Faculty of Integrated Human Studies, Kyoto University
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