Low-Temperature Properties of Quasi-One-Dimensional Molecule-Based Ferromagnets : Condensed Matter: Electronic Properties, etc.
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概要
- 論文の詳細を見る
Quantum and thermal behaviors of low-dimensional mixed-spin systems are investigated with particular emphasis on the design of molecule-based ferromagnets. One can obtain a molecular ferromagnet by assembling molecular bricks so as to construct a low-dimensional system with a magnetic ground state and then coupling the chains or the layers again in a ferromagnetic fashion. Two of thus-constructed quasi-one-dimensional bimetallic compounds are qualitatively viewed within the spin-wave treatment, one of which successfully grows into a bulk magnet, while the other of which ends in a singlet ground state. Then, concentrating on the ferrimagnetic arrangement on a two-leg ladder which is well indicative of general coupled-chain ferrimagnets, we develop the spin-wave theory and fully reveal its low-energy structure. We inquire further into the ferromagnetic aspect of the ferrimagnetic ladder numerically calculating the sublattice magnetization and the magnetic susceptibility. There exists a moderate coupling strength between the chains in order to obtain the most ferromagnetic ferrimagnet.
- 社団法人日本物理学会の論文
- 2001-05-15
著者
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NAKANISHI Takashi
Department of Internal Medicine, Division of Rheumatology, National Defense Medical College
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SAKAI Toru
Faculty of Science, Himeji Institute of Technology
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Yamamoto Shoji
Department Of Physics Okayama University
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Yamamoto Shoji
Department Of Biological Chemistry And Crest (core Research For Educational Science And Technology)
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NAKANISHI TAKASHI
Graduate School of Natural Science and Technology, Kanazawa University
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Nakanishi Takashi
Graduate School Of Natural Science And Technology Kanazawa University
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Sakai Toru
Faculty Of Science Himeji Institute Of Technology
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Nakanishi Takashi
Department Of Applied Chemistry Faculty Of Engineering Nagasaki University
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