High Field ESR Study of the S=1/2 Diamond-Chain Substance Cu_3(CO_3)_2(OH)_2 up to the Magnetization Plateau Region (Condensed Matter: Electric Structure, Electrical, Magnetic and Optical Properties)

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概要

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• High field ESR measurements of Cu_3(CO_3)_2(OH)_2 have been performed in the frequency region from 50 to 900 GHz and in the temperature region from 1.8 to 265 K using the pulsed magnetic field up to 36 T. The large g-shifts below 23 K and the characteristic temperature dependence of the linewidth are discussed in connection with the two maxima of magnetic susceptibility observed at 5 and 23 K. Our ESR results together with the magnetization and theoretical results suggest that the ground state of the system is in the spin fluid (SF) phase at low field and low temperature. From the frequency-field dependence measurements at 1.8 K, the direct transition, which is closely related to the magnetization plateau from 16 to 26 T at 1.5 K, is observed for the first time. The observed frequency-field diagram suggests that the exchange interaction in the dimer is estimated to be about 50 K (1057 GHz).

• 社団法人日本物理学会の論文
• 2003-10-15

著者

• SAITO Takashi

  Institute for Chemical Research, Kyoto University

• TAKANO Mikio

  Institute for Chemical Research, Kyoto University

• OKUBO Susumu

  Molecular Photoscience Research Center, Kobe University

• OHTA Hitoshi

  Molecular Photoscience Research Center, Kobe University

• KIKUCHI Hikomitsu

  Department of Applied Physics, University of Fukui

• AZUMA Masaki

  Institute for Chemical Research, Kyoto University

• KAMIKAWA Tomohisa

  Graduate School of Science and Technology, Kobe University

• KUNIMOTO Takashi

  Department of Nano Material and Bio Engineering, Tokushima Bunri University

• Takagi S

  Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University

• Tsutsui Satoshi

  Japan Synchrotron Radiation Research Institute Spring-8

• Kunimoto Takashi

  The Department Of Electrical And Electronic Engineering Tottori University:(present Address)venture

• Tsutsui Satoshi

  Department Of Materials Science And Technology Iwate University

• Suzuki T

  Issp University Of Tokyo

• Saito T

  Faculty Of Engineering Kyushu Institute Of Technology

• Sasaki T

  Center For Geo-environmental Science Faculty Of Engineering And Resource Science Akita University

• KUNIMOTO Takashi

  Venture Business Laboratory, Kobe University

• INAGAKI Yuji

  Venture Business Laboratory, Kobe University

• Takano M

  Institute For Chemical Research Kyoto University

• Takano M

  Kyoto Univ. Kyoto

• Takano Mikio

  Department Of Chemistry Faculty Of Science Konan University

• Takano Mikio

  Institute For Chemical Research (icr) Kyoto University

• Tatsuoka Sho

  Graduate School Of Science Tokyo Metropolitan University

• Okubo S

  Molecular Photoscience Research Center Kobe University:venture Business Laboratory Kobe University

• Okubo Susumu

  Institute For Materials Research Tohoku University

• Kamikawa T

  Graduate School Of Science And Technology Kobe University

• Kuwai Tomohiko

  Department Of Physics Toyama University

• Azuma M

  Institute For Chemical Research Kyoto University

• Azuma Masaki

  Institute For Chemical Research Kyoto University

• Kunimoto T

  Department Of Nano Material And Bio Engineering Tokushima Bunri University

• Kunimoto Takashi

  Depanment Of Physics Faculty Of Science Science University Of Tokyo

• INAGAKI Yuji

  The Graduate School of Science and Technology, Kobe University

• Kikuchi H

  Department Of Applied Physics Fukui University

• Kikuchi H

  Institute Of Physics University Of Tsukuba

• Kikuchi H

  Kyoto Univ. Kyoto

• Kikuchi Hikomitsu

  Department Of Applied Physics Fukui University

• Inagaki Y

  Department Of Applied Quantum Physics And Nuclear Engineering Faculty Of Engineering Kyushu Universi

• Tsutsui Satoshi

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• Suzuki Taira

  Department Of Mterials Science And Technology Science University Of Tokyo

• Kikuchi Hikomitsu

  Institute Of Physics University Of Tsukuba

• Kikuchi Hitoshi

  Atomic Energy Research Institute College Of Science And Technology Nihon University

• Mitsui Takaya

  Crest Japan Science And Technology Agency:japan Atomic Energy Agency

• Ohta Hitoshi

  Molecular Photoscience Research Center Kobe University

• Kamikawa Tomohisa

  Graduate School Of Science And Technology Kobe University

• Okubo Susumu

  Department Of Physics And Astronomy University Of Rochester

• Inagaki Yuji

  Department Of Physics Kyushu University

• Arai Masaya

  Department Of Physics Sophia University

• Saito Takashi

  Institute For Chemical Research Kyoto University

• AZUMA Masaki

  Institute of Chemical Research, Kyoto University:PRESTO, Japan Science and Technology Corporation (JST)

• Inagaki Yuji

  Department of Applied Quantum Physics and Nuclear Engineering Faculty of Engineering, Kyushu University

• OKUBO Susumu

  Venture Business Laboratory, Kobe University:Molecular Photoscience Research Center, Kobe University

• Kikuchi Hikomitsu

  Department of Applied Physics, Fukui University

• Okubo Susumu

  Molecular Photoscience Research Center and Department of Physics, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan

• Ohta Hitoshi

  Molecular Photoscience Research Center and Department of Physics, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan

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