Detailed ESR Measurements for the Quantum Molecular Magnet V15 at Ultra-Low Temperatures(Nanometer-Scale Magnets, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
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概要
- 論文の詳細を見る
The low-temperature magnetism of fascinating quantum molecular magnet V15 which shows "Quantum Tunneling" is studied by ESR experiment. ESR investigations were performed at low temperatures down to 0.5K. At 4.2K, a resonant peak was observed clearly. From the analysis of temperature dependence of the signal intensity, we found that the magnetic moments of V15 clusters drastically decrease with lowering temperature. This result indicates the ground state of spins of V15 ions is Kramers doublet with S=1/2. The field dependence of ESR resonant frequency indicates that the zero field splitting Δ_0^* of the Kramers doublet is about 80mK, which is consistent with the magnetization measurements.
- 理論物理学刊行会の論文
- 2005-10-31
著者
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網代 芳民
京大院理
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AJIRO Yoshitami
Department of Chemistry, Graduate School of Science, Kyoto University
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網代 芳民
Department Of Chemistry Kyoto University:crest Japan Science And Technology Corporation (jst)
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Ajiro Y
Department Of Chemistry Graduate School Of Science Kyoto University
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榊原 俊郎
北大理
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鈴木 孝
Graduate School Of Engineering Science Osaka University
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高柳 滋
北海道教育大学教育学部札幌
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Kindo K
Advanced Science Research Center Japan Atomic Energy Agency
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Kindo K
Institute For Solid State Physics The University Of Tokyo
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Kindo Koichi
Institute For Solid State Physics University Of Tokyo
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Kindo K.
Research Center For Materials Science At Extreme Conditions Osaka University
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鈴木 孝
金材技研
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KOYAMA Keiichi
High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku Univer
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MOTOKAWA Mitsuhiro
High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku Univer
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SAKON Takuo
Department of Mechanical Engineering, Faculty of Engineering and Resource Science, Akita University
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MULLER Achim
Facultat fur Chemie, Universitat Bielefeld
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BARBARA Bernard
Laboratorie de Magnetisme Louis Neel
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Kindo Koichi
Research Center For Materials Science At Extreme Conditions Osaka University
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Takagi S
Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University
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Tsutsui Satoshi
Japan Synchrotron Radiation Research Institute Spring-8
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鈴木 直
大阪大学大学院基礎工学研究科
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榊原 俊雄
東大物性研
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Kindo K
Kyokugen Osaka University
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Kishio K
Inst. For Solid State Physics The Univ. Of Tokyo
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鈴木 孝
東北大 理
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Suzuki T
Fac. Of Engineering Kyushu Inst. Of Technol. Kitakyushu 804-8550 Jpn
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鈴木 考至
広大理
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Ajiro Y
Department Of Physics Kyushu University
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Tsutsui Satoshi
Department Of Materials Science And Technology Iwate University
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KOBAYASHI Keisuke
Japan Synchrotron Radiation Research Institute/SPring-8
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Suzuki T
Issp University Of Tokyo
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Koyama K
Institute For Solid State Physics University Of Tokyo
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Sasaki T
Center For Geo-environmental Science Faculty Of Engineering And Resource Science Akita University
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SUDA Toshimi
The Institute of Physical and Chemical Research
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Kosuge Koji
Department Of Chemistry Graduate School Of Science Kyoto University
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Tatsuoka Sho
Graduate School Of Science Tokyo Metropolitan University
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Suzuki N
Riken (inst. Physical And Chemical Res.) Saitama
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Suzuki Naoshi
Department Of Material Physics Osaka University
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Sugaya Takashi
Issp University Of Tokyo
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Koyama K
Institute For Solid State Physics University:(present)institute Of Materials Research Tohoku Univers
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Motokawa M
Institute For Materials Research Tohoku University
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Motokawa Mitsuhiro
Tohoku Univ. Sendai Jpn
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Susaki Tomofumi
Department Of Physics And Department Of Complexity Science And Engineering University Of Tokyo:(pres
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Barbara Bernard
Laboratoire De Magnetisme Louis Neel Cnrs
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Sakon Takuo
Department Of Physics Faculty Of Science Tohoku University
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Shibata Tadashi
Department Of Physics Faculty Of Science Osaka University
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Koga K
Department Of Superconductivity University Of Tokyo
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Suzuki T
Graduate School Of Science And Technology Chiba University
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Koyama Keiichi
High Field Lab. For Superconducting Materials Inst. For Materials Res. Tohoku Univ.
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Muller Achim
Facultat Fur Chemie Universitat Bielefeld
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Tsutsui Satoshi
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Ajiro Yoshitami
Department Of Applied Physics Fukui University
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Ajiro Yoshitami
Department Of Applied Physics Faculty Of Engineering Fukui University
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Suzuki N
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Mitome Masanori
National Institute Of Materials Science
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Motokawa Mitsuhiro
Crest Japan Science And Technology:institute For Material Research Tohoku University
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Suzuki Taira
Department Of Mterials Science And Technology Science University Of Tokyo
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Mino M
Okayama Univ. Okayama
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Sasagawa Takao
Graduate School Of Frontier Sciences University Of Tokyo
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Sakakibara T
Department Of Electrical And Electronic Engineering Toyohashi University Of Technology
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Sakon Takuo
Department Of Mechanical Engineering Graduate School Of Engineering And Material Research Akita Univ
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Saito Takashi
Institute For Chemical Research Kyoto University
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Tsutsui Satoshi
Research And Utilization Division Spring-8 Jasri
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Suzuki Naoshi
Division Of Materials Physics Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Motokawa Mitsuhiro
High Field Laboratory for Superconducting Materials, Institute for Material Research, Tohoku University, Katahira, Sendai 980-8577, Japan
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AJIRO Yoshitami
Department of Chemistry, Graduated School of Science, Kyoto University
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SUZUKI Takashi
Department of Applied Physics Faculty of Engineering, Nagoya University
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Sakon Takuo
Department of Mechanical and Systems Engineering, Faculty of Science and Technology, Ryukoku University, Otsu 520-2194, Japan
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SAKON Takuo
Department of Mechanical and Systems Engineering, Faculty of Science and Technology, Ryukoku University
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