Spin Dynamics in an Ising-Like Quantum Spin Chain with Nonmagnetic Impurities
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概要
- 論文の詳細を見る
Neutron inelastic-scattering experiments on an Ising-like quantum antiferromagnetic chain with nonmagnetic impurities, CsCo_cMg_<1-c>Cl_3 (c=1, 0.95, 0.9, 0.85, 0.6 and 0.4), were performed. The concentration dependence of the spin dynamics showed that although the solitons and the spin-wave continuum state were stable for a small amount of nonmagnetic impurities, they vanished at c=0.8. We also observed the coexistence of Ising-cluster excitations and intra-cluster excitations at low temperatures. These results can be well interpreted by a theory incorporated with next-nearest-neighbor interactions in the chain.
- 社団法人日本物理学会の論文
- 1995-03-15
著者
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IWASA Kazuaki
Department of Physics, Graduate School of Science, Tohoku University
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Kazuaki Iwasa
Department Of Physics Tohoku University
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Iwasa K
Tokyo Metropolitan Univ. Hachioji
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Ikeda H
Department Of Science Kyoto University
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Ikeda Hironobu
Booster Synchrotron Utilization Facility, National Laboratory for High Energy Physics
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伊藤 晋一
KEK物構研
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Itoh S
Neutron Science Laboratory Institute Of Materials Structure Science High Energy Accelerator Research
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Ikeda Hironobu
Neutron Science Laboratory Institute Of Materials Structure Science High Energy Accelerator Research
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ITOH Shinichi
Booster Synchrotron Utilization Facility,National Laboratory for High Energy Physics
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Iwasa Kazuaki
Department Of Physics Faculty Of Science And Technology Keio University
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Sugimoto Daisuke
Booster Synchrotron Utilization Facility, National Laboratory for High Energy Physics
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Eccleston S.
ISIS Facility, Rutherford Appleton Laboratory
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Itoh Shinichi
Neutron Science Laboratory Institute Of Materials Structure Science High Energy Accelerator Research
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Eccleston S.
Isis Facility Rutherford Appleton Laboratory
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Ikeda Hironobu
Booster Synchrotron Utilization Facility National Laboratory For High Energy Physics
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Itoh Shinichi
Booster Synchrotron Utilization Facility National Laboratory For High Energy Physics
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Sugimoto Daisuke
Booster Synchrotron Utilization Facility National Laboratory For High Energy Physics
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