研究

博士課程のときは「NMR法による有機分子磁性体のスピンダイナミクスの研究」をしていました。

最近は、いろいろな低次元量子スピン系に対して、NMR（核磁気共鳴）を中心とした測定手段で、低次元スピン系のスピンダイナミクスやフラストレート系の振る舞いを主に調べています。

List of recent publications

所属は省略させていただいております。
  1. Quantum spin dynamics studied by the nuclear magnetic relaxation of protons in the Haldane-gap system (CH3)4NNi(NO2)3
    T. Goto, T. Ishikawa, Y. Shimaoka, and Y. Fujii : Phys. Rev. B, 73 (2006) 214406 (11 pages).
  2. Experimental Observation of the 1/3 Magnetization Plateau in the Diamond-Chain Compound Cu3(CO3)2(OH)2
    H. Kikuchi, Y. Fujii, M. Chiba, S. Mitsudo, T. Idehara, T. Tonegawa, K. Okamoto, T. Sakai, T. Kuwai, and H. Ohta : Phys. Rev. Lett., 94 (2005) 227201 (4 pages).
  3. Field-induced magnetic order in the singlet-ground-state magnet CsFeCl3
    M. Toda, Y. Fujii, S. Kawano, T. Goto, M. Chiba, S. Ueda, K. Nakajima, K. Kakurai, J. Klenke, R. Feyerherm, M. Meschke, H. A. Graf, and M. Steiner : Phys. Rev. B, 71 (2005) 224426 (5 pages).
  4. NMR Study of Successive Phase Transitions in CuB2O4
    H. Nakamura, Y. Fujii, H. Kikuchi, M. Chiba, Y. Yamamoto, H. Hori, G. Petrakovskii, M. Popov, L. Bezmaternikh : The Physics of Metals and Metallography, 99, Suppl. 1 (2005) S15-S17.
  5. Magnetic Properties of [VO(μ3-MoO4)(2,2'-bpy)]: New Model Compound for S=1/2 Zigzag Frustrated One-Dimensional Magnet
    Hikomitsu Kikuchi, Yutaka Fujii, Meiro Chiba, Seitaro Mitsudo, Toshitaka Idehara : Polyhedron, 24 (2005) 2835-2838.
  6. NMR Study of Dinuclear Molecular Magnet MnIIICuII(5-Br-sap)2Cl(MeOH)
    Yutaka Fujii, Shinji Hayasaki, Hiroki Hashimoto, Meiro Chiba, Ayano Yoshida, Masayuki Nihei, Hiroki Oshio, Bin Chen, Takeji Kubo : Polyhedron, 24 (2005) 2885-2888.
  7. Magnetic properties of the diamond chain compound Cu3(CO3)2(OH)2
    H. Kikuchi, Y. Fujii, M. Chiba, S. Mitsudo, T. Idehara, T. Tonegawa, K. Okamoto, T. Sakai, T. Kuwai, K. Kindo, A. Matsuo, W. Higemoto, K. Nishiyama, M. Horvatic, C. Berthier : Prog. Theo. Phys. Suppl., 159 (2005) 1-10.
  8. High field ESR measurements of S=1/2 diamond chain substance Cu3(CO3)2(OH)2 at the magnetization plateau region
    S. Okubo, A. Taketani, H. Ohta, T. Kunimoto, Y. Inagaki, T. Saito, M. Azuma, M. Takano, H. Kikuchi : Prog. Theo. Phys. Suppl., 159 (2005) 10-16.
  9. Nuclear magnetic relaxation of proton in organic radial antiferromagnet BIPNNBNO around critical field region
    Yutaka Fujii, Hiroki Hashimoto, Atsushi Mori, Akihiro Tanaka, Meiro Chiba, Yuko Hosokoshi, Yoshiyuki Yamamoto and Hidenobu Hori : Prog. Theo. Phys. Suppl., 159 (2005) 118-122.
  10. NMR study of the successive phase transitions in CuB2O4
    Hironori Nakamura, Yutaka Fujii, Hikomitsu Kikuchi, Meiro Chiba, Yoshiyuki Yamamoto, Hidenobu Hori, Guerman Petrakovskii, Michail Popov and L. Bezmaternikh : Prog. Theo. Phys. Suppl., 159 (2005) 360-364.
  11. NMR study of S=1/2 quasi-two dimensional antiferromagnet Cs2CuBr4
    Y.Fujii, T.Nakamura, H.Kikuchi, M.Chiba, T.Goto, S.Matsubara, K.Kodama, M.Takigawa : Physica B, 346-347 (2004) 45-49.
  12. Ga-NMR study of pyrochlore slab antiferromagnets Ba2Sn2Ga10-7pZnCr7pO22
    H. Noda, Y. Fujii, H. Kikuchi, M. Chiba, Y. Yamamoto, H. Hori and N. Wada : J. Magn. Magn. Mater., 272-276 (2004) E1017-E1018.
  13. 11B-NMR in soliton lattice system CuB2O4
    H. Nakamura, Y. Fujii, H. Kikuchi and M. Chiba : J. Magn. Magn. Mater., 272-276 (2004) 1007-1008.
  14. NMR study of S=1/2 quasi-two-dimensional antiferromagnet Cs2CuBr4
    Y. Fujii, T. Nakamura, H. Kikuchi, M. Chiba, T. Goto, S. Matsubara, K. Kodama and M. Takigawa : J. Magn. Magn. Mater., 272-276 (2004) 861-862.
  15. 1H-NMR of S=1 antiferromagnets with bond alternation
    H. Yamamoto, H. Kikuchi, Y. Fujii and M. Chiba : J. Magn. Magn. Mater., 272-276 (2004) 894-895.
  16. High-field ESR measurements of the diluted pyrochlore slab antiferromagnets Ba2Sn2Ga10-7pZnCr7pO22
    S. Mitsudo, T. Higuchi, T. Idehara, H. Noda, Y. Fujii, H. Kikuchi and M. Chiba : J. Magn. Magn. Mater., 272-276 (2004) E1003-E1004.
  17. Experimental evidence of the one-third magnetization plateau in the diamond chain compound Cu3(CO3)2(OH)2
    H. Kikuchi, Y. Fujii, M. Chiba, S. Mitsudo, T. Idehara and T. Kuwai : J. Magn. Magn. Mater., 272-276 (2004) 900-901.
  18. Neutron diffraction study of the field-induced order in singlet-ground state magnet CsFeCl3
    M. Toda, Y. Fujii, M. Chiba, S. Kawano, T. Goto, J. Klenke, H. A. Graf and M. Steiner : J. Magn. Magn. Mater., 272-276 (2004) 378-379.

過去の論文類はこちら。

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