オリジナル論文

  1. S. Miyatsu, M. Kofu, A. Shigematsu, T. Yamada, H. Kitagawa, W. Lohstroh, G. Simeoni, M. Tyagi and O. Yamamuro
    Quasielastic neutron scattering study on proton dynamics assisted by water and ammonia molecules confined in MIL‐53
    J. Phys. Chem. C, submitted.

  2. Y. Mizuno, M. Kofu, and O. Yamamuro
    X-ray diffraction study on simple molecular glasses created by low-temperature vapor-deposition method
    J. Phys. Soc. Jpn., in press.

  3. M. Kofu, N. Hashimoto, H. Akiba, H. Kobayashi, H. Kitagawa, M. Tyagi, A. Faraone, J. R. D. Copley, W. Lohstroh and O. Yamamuro
    Hydrogen diffusion in bulk and nanocrystalline palladium: A quasielastic neutron scattering study
    Phys. Rev. B, 94, 064303 (11 pages) (2016). DOI: 10.1103/PhysRevB.94.064303

  4. H. Akiba, M. Kofu, H. Kobayashi, H. Kitagawa, K. Ikeda, T. Otomo and O. Yamamuro
    Nanometer-Size Effect on Hydrogen Sites in Palladium Lattice
    J. Am. Chem. Soc., 138, 10238-10243 (2016). DOI: 10.1021/jacs.6b04970

  5. O. Borodin, D. L. Price, B. Aoun, M. A. Gonzalez, J. B. Hooper, M. Kofu, S. Kohara, O. Yamamuro and M. -L. Saboungi
    Effect of water on the structure of a prototype ionic liquid
    Phys. Chem. Chem. Phys., 18, 23474-23481 (2016). DOI: 10.1039/C6CP02191C

  6. M. Kofu, M. Tyagi, Y. Inamura, K. Miyazaki and O. Yamamuro
    Quasielastic neutron scattering studies on glass-forming ionic liquids with imidazolium cations
    J. Chem. Phys., 143, 234502 (10 pages) (2015). 　 DOI: 10.1063/1.4937413

  7. H. Akiba, H. Kobayashi, H. Kitagawa, M. Kofu and O. Yamamuro
    Glass transition and positional ordering of hydrogen in bulk and nano crystalline palladium
    Phys. Rev. B, 92, 064202 (8 pages) (2015).   DOI: 10.1103/PhysRevB.92.064202

  8. M. Kofu, Y. Inamura, Y. Moriya, A. Podlesnyak, G. Ehlers and O. Yamamuro
    Inelastic neutron scattering study on boson peaks of imidazolium-based ionic liquids
    J. Mol. Liq, 210, 164-168 (2015).   DOI: 10.1016/j.molliq.2015.07.021

  9. F. Nemoto, M. Kofu and O. Yamamuro
    Thermal and Structural Studies of Imidazolium-Based Ionic Liquids with and without Liquid-Crystalline Phases: The Origin of Nanostructure
    J. Phys. Chem. B, 119, 5028-5034 (2015).   DOI: 10.1021/acs.jpcb.5b01080

  10. S. Miyatsu, M. Kofu, A. Nagoe, T. Yamada, M. Sadakiyo, T. Yamada, H. Kitagawa, M. Tyagi, V. Garcia Sakai and O. Yamamuro
    Proton Dynamics of Two Dimensional Oxalate-Bridged Coordination Polymers
    Phys. Chem. Chem. Phys., 16, 17295-17304 (2014).   DOI: 10.1039/c4cp01432d

  11. M. Kofu, T. Kajiwara, J. S. Gardner, G. G. Simeoni, M. Tyagi, K. Nakajima, S. Ohira-Kawamura, M. Nakano, and O. Yamamuro
    Magnetic relaxations in a Tb-based single molecule magnet studied by quasielastic neutron scattering
    Chem. Phys., 427, 147–152 (2013).   DOI: 10.1016/j.chemphys.2013.10.004

  12. M. Kofu, T. Kajiwara, M. Nakano, K. Nakajima, S. Ohira-Kawamura, T. Kikuchi, Y. Inamura and O. Yamamuro
    Hyperfine structure of magnetic excitations in a Tb-based single-molecule magnet studied by high-resolution neutron spectroscopy
    Phys. Rev. B, 88, 064405 (7 pages) (2013).   DOI: 10.1103/PhysRevB.88.064405

  13. T. Kikuchi, K. Nakajima, S. Ohira-Kawamura, Y. Inamura, O. Yamamuro, M. Kofu, Y. Kawakita, K. Suzuya, M. Nakamura and M. Arai
    Mode distribution analysis of quasi-elastic neutron scattering and application to liquid water
    Phys. Rev. E, 87, 062314 (8 pages) (2013).   DOI: 10.1103/PhysRevE.87.062314

  14. M. Kofu, M. Nagao, T. Ueki, Y. Kitazawa, Y. Nakamura, S. Sawamura, M. Watanabe and O. Yamamuro
    Heterogeneous Slow Dynamics of Imidazolium Based Ionic Liquids Studied by Neutron Spin Echo
    J. Phys. Chem. B, 117, 2773-2781 (2013).   DOI: 10.1021/jp312608r

  15. S. Hino, M. Maeda, K. Yamashita, Y. Kataoka, M. Nakano, T. Yamamura, H. Nojiri, M. Kofu, O. Yamamuro and T. Kajiwara
    Linear trinuclear Zn(II)–Ce(III)–Zn(II) complex which behaves as a single-molecule magnet
    Dalton Trans., 42, 2683-2686 (2013).   DOI: 10.1039/C2DT32812G

  16. K. Iida, J. Lee, M. B. Stone, M. Kofu, Y. Yoshida, and S.-H. Lee
    Two-dimensional incommensurate magnetic fuctuations in Sr2(Ru0.99Ti0.01)O4
    J. Phys. Soc. Jpn. 81, 124710 (2012).   DOI: 10.1143/JPSJ.81.124710

  17. M. Matsuura, M. Fujita, H. Hiraka, M. Kofu, H. Kimura, S. Wakimoto, T. G. Perring, C. D. Frost, and K. Yamada
    Ni-substitution effects on the spin dynamics and superconductivity in La1.85Sr0.15CuO4
    Phys. Rev. B, 86, 134529 (8 pages) (2012).   DOI: 10.1103/PhysRevB.86.134529

  18. O. Yamamuro, T. Someya, M. Kofu, T. Ueki, K. Ueno and M. Watanabe
    Heat Capacities and Glass Transitions of Ion Gels
    J. Phys. Chem. B, 116, 10935–10940 (2012).   DOI: 10.1021/jp3030655

  19. M. Kofu, T. Someya, S. Tatsumi, K. Ueno, T. Ueki, M. Watanabe, T. Matsunaga, M. Shibayama, V Garcia Sakai, M. Tyagi and O. Yamamuro
    Microscopic insights into Ion Gel dynamics using neutron spectroscopy
    Soft Matter, 8, 7888-7897 (2012).   DOI: 10.1039/C2SM25348H

  20. K. Mori, K. Iwase, M. Sugiyama, M. Kofu, O. Yamamuro, Y. Onodera, T. Otomo and T. Fukunaga
    Neutron scattering studies of Ti-Cr-V bcc alloy with the residual hydrogen and deuterium
    J. Phys.: Conf. Ser., 340, 012103 (5 pages) (2012).   DOI: 10.1088/1742-6596/340/1/012103

  21. K. Iida, M. Kofu, N. Katayama, J. Lee, R. Kajimoto, Y. Inamura, M. Nakamura, M. Arai, Y. Yoshida, M. Fujita, K. Yamada, and S.-H. Lee
    Inelastic neutron scattering study of the magnetic fluctuations in Sr2RuO4
    Phys. Rev. B 84, 060402 (4 pages) (2011).   DOI: 10.1103/PhysRevB.84.060402

  22. O. Yamamuro, T. Yamada, M. Kofu, M. Nakakoshi and M. Nagao
    Hierarchical Structure and Dynamics of an Ionic Liquid 1-Octyl-3-methyl-imidazolium Chloride
    J. Chem. Phys., 135, 054508 (7 pages) (2011).   DOI: 10.1063/1.3622598

  23. Kouji Segawa, M. Kofu, S-H. Lee, I. Tsukada, H. Hiraka, M. Fujita, S. Chang, K. Yamada, Yoichi Ando
    Zero-doping state and electron–hole asymmetry in an ambipolar cuprate
    Nature Phys. 6, 579-583 (2010).   DOI: 10.1038/nphys1717

  24. T. Zenmoto, Y. Oshima, H. Nojiri, S.-H Lee, M. Kofu
    High Magnetic Field Micro-Calorimeter and Application for BE-Condensation of Cr5+ Dimer System
    J. Low Temp. Phys., 159, 118 (2010).   DOI: 10.1007/s10909-009-0087-5

  25. K. Sasai, M. Kofu, R. M. Ibberson, K. Hirota, J. Yamaura, Z. Hiroi and O. Yamamuro
    A Novel Isomorphic Phase Transition in β-Pyrochlore Oxide KOs2O6: A Study Using High-resolution Neutron Powder Diffraction
    J. Phys.: Cond. Matter, 22, 015403 (7 pages) (2010).   DOI: 10.1088/0953-8984/22/1/015403

  26. M. Matsuura, M. Kofu, H. Kimura, K. Hirota
    Renormalization of Commensurate Magnetic Peak in Ni-Doped La1.85Sr0.15CuO4
    J. Phys. Soc. Jpn., 78, 114703 (2009).   DOI: 10.1143/JPSJ.78.114703

  27. M. Kofu, H. Kimura, H. Ishida, T. Matsumura, K. Hirota
    Zn-doping effects on the electrical resistivity of La1.85Sr0.15CuO4 under a magnetic field
    Phys. Rev. B, 79, 184508 (2009).   DOI: 10.1103/PhysRevB.79.184508

  28. M. Kofu, Y. Qiu, W. Bao, S.-H. Lee, S. Chang, T. Wu, G. Wu, X. H. Chen
    Neutron scattering investigation of the magnetic order in single crystalline BaFe2As2
    New J. Phys., 11, 055001 (2009).   DOI: 10.1088/1367-2630/11/5/055001

  29. M. Kofu, H. Ueda, H. Nojiri, Y. Oshima, T. Zenmoto, K. C. Rule, S. Gerischer, B. Lake, C. D. Batista, Y. Ueda, S.-H. Lee
    Magnetic-Field Induced Phase Transitions in a Weakly Coupled s=1/2 Quantum Spin Dimer System Ba3Cr2O8
    Phys. Rev. Lett., 102, 177204 (2009).   DOI: 10.1103/PhysRevLett.102.177204

  30. M. Kofu, S.-H. Lee, M. Fujita, H.-J. Kang, H. Eisaki, K. Yamada
    Hidden quantum spin gap state in the static stripe phase of La2-xSrxCuO4
    Phys. Rev. Lett., 102, 047001 (2009).   DOI: 10.1103/PhysRevLett.102.047001

  31. M. Kofu, J.-H. Kim, S. Ji, S.-H. Lee, H. Ueda, Y. Qiu, H. J. Kang, M. Green, Y. Ueda
    Weakly coupled s = 1/2 quantum spin singlets in Ba3Cr2O8
    Phys. Rev. Lett., 102, 037206 (2009).   DOI: 10.1103/PhysRevLett.102.037206

  32. Y. Qiu, M. Kofu, W. Bao, S.-H. Lee, Q. Huang, T. Yildirim, J. R. D. Copley, J. W. Lynn, T. Wu, G. Wu, X. H. Chen
    Neutron-scattering study of the oxypnictide superconductor LaFeAsO0.87F0.13
    Phys. Rev. B, 78, 052508 (2008).   DOI: 10.1103/PhysRevB.78.052508

  33. K. Terashima, T. Sato, K. Nakayama, T. Arakane, T. Takahashi, M. Kofu, K. Hirota
    Effect of Zn impurities on the electronic structure of La1.85Sr0.15CuO4 studied by high-resolution angle-resolved photoemission spectroscopy
    Phys. Rev. B, 77, 092501 (2008).   DOI: 10.1103/PhysRevB.77.092501

  34. R. Kajimoto, T. Yokoo, M. Kofu, K. Noda, H. Kuwahara
    Ferroelectric polarization and magnetic structure in Eu0.595Y0.405MnO3
    J. Phys. Chem. Sol., 68, 2087 (2007).   DOI: 10.1016/j.jpcs.2007.08.051

  35. T. Sato, K. Terashima, K. Nakayama, H. Matsui, T. Takahashi, K. Kadowaki, M. Kofu, K. Hirota
    Universality of Low-Energy Mass Renormalization in the Superconducting State of Hole-Doped High-Tc Superconductors
    J. Phys. Soc. Jpn., 76, 103707 (2007).   DOI: 10.1143/JPSJ.76.103707

  36. Y. X. Xiao, T. Sato, K. Terashima, H. Matsui, T. Takahashi, M. Kofu, K. Hirota
    Single-particle excitation gap in La2-xSrxCuO4 studied by high-resolution angle-resolved photoemission
    Physica C, 463-465, 44-47 (2007).   DOI: 10.1016/j.physc.2007.03.434

  37. T. Sato, K. Terashima, K Nakayama, T. Takahashi, K. Kadowaki, M. Kofu,K. Hirota
    Bogoliubov quasiparticle and low-energy dispersion kink in the superconducting state of La1.85Sr0.15CuO4
    Physica C, 460-462, 864-865 (2007).   DOI: 10.1016/j.physc.2007.03.087

  38. K. Terashima, H. Matsui, T. Sato, T. Takahashi, M. Kofu, K. Hirota
    Anomalous Momentum Dependence of the Superconducting Coherence Peak and Its Relation to the Pseudogap of La1.85Sr0.15CuO4
    Phys. Rev. Lett., 99, 017003 (2007).   DOI: 10.1103/PhysRevLett.99.017003

  39. B. L. Winn, H. Kimura, D. N. Argyriou, N. Aso, K. Hirota, M. Kofu, M. Matsuura
    Magnetic field-induced change of modulated antiferromagnetic correlations for La1.85Sr0.15Cu1-yZnyO4 with y=0.004, 0.02
    Physica B, 385-386, 153-155 (2006).   DOI: 10.1016/j.physb.2006.05.308

  40. K. Nakayama, T. Sato, T. Dobashi, K. Terashima, S. Souma, H. Matsui, T. Takahashi, J. C. Campuzano, K. Kudo, T. Sasaki, N. Kobayashi, T. Kondo, T. Takeuchi, K. Kadowaki, M. Kofu, K. Hirota
    Origin of shadow bands in single-layered Bi2Sr2CuO6+δ studied by high-resolution angle-resolved photoemission spectroscopy
    Phys. Rev. B, 74, 054505 (2006).   DOI: 10.1016/j.physc.2007.03.328

  41. M. Kofu, H. Kimura, K. Hirota
    Zn and Ni doping effects on the low-energy spin excitations in La1.85Sr0.15CuO4
    Phys. Rev. B, 72, 064502 (2005).   DOI: 10.1103/PhysRevB.72.064502

  42. H. Kimura, M. Kofu, Y. Matsumoto, K. Hirota
    Novel In-Gap Spin State in Zn-Doped La1.85Sr0.15CuO4
    Phys. Rev. Lett., 91, 067002 (2003).   DOI: 10.1103/PhysRevLett.91.067002

総説・解説

  1. 山室 修，水野 勇希，古府 麻衣子
    低温蒸着法で作製した単純分子ガラスの構造
    日本結晶学会誌, 58, 13-17 (2016).

  2. 古府 麻衣子，山室 修
    イミダゾリウム系イオン液体の階層的・ガラスダイナミクス
    日本結晶学会誌, 58, 18-23 (2016).

  3. 山室 修，根本 文也，古府 麻衣子
    中性子散乱で観たイオン液体の階層的構造とダイナミクス
    高圧力の科学と技術, 25(3), 200-207 (2015)

  4. 山室　修, 古府　麻衣子
    連載講座「中性子散乱による原子・分子のダイナミクスの観測」Ⅲ-2 中性子非弾性散乱法による固体表面での分子分光
    RADIOISOTOPES, 63, 453-459(2014).

  5. 古府　麻衣子, 山室　修
    イミダゾリウム系イオン液体の不均一ダイナミクス
    波紋, Vol24, 126-131 (2014)

  6. 古府麻衣子
    『量子スピンダイマー系Ba3Cr208における磁気励起』
    波紋,Vol.19 22-25 (2009)

経歴

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