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using vibrational spectroscopiesSakurai, Yoko; Machida, Akihiko; Aoki, Katsutoshi
no journal, ,
no abstracts in English
Si+
UNishio, Katsuhisa; Ikezoe, Hiroshi; Nishinaka, Ichiro; Mitsuoka, Shinichi; Nagame, Yuichiro; Watanabe, Yutaka*; Otsuki, Tsutomu*; Hirose, Kentaro*; Sato, Hiroki*; Hofmann, S.*
no journal, ,
no abstracts in English
Kotaki, Hideyuki; Kando, Masaki; Daito, Izuru; Homma, Takayuki; Kameshima, Takashi; Kawase, Keigo; Chen, L. M.*; Fukuda, Yuji; Kiriyama, Hiromitsu; Kondo, Shuji; et al.
no journal, ,
no abstracts in English
Ikeda, Takashi
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no abstracts in English
Moribayashi, Kengo
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no abstracts in English
Kawasuso, Atsuo; Maekawa, Masaki
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no abstracts in English
Maekawa, Fujio
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no abstracts in English
1s X-ray resonant emission spectroscopy of LuFe
O
single crystalAgui, Akane; Mizumaki, Masaichiro*; Kawamura, Naomi*; Kuroda, Tomoko*; Hayakawa, Hironori*; Maeda, Daisuke*; Michiuchi, Takamasa*; Ikeda, Naoshi*
no journal, ,
no abstracts in English
Yokota, Terufumi
no journal, ,
no abstracts in English
Mizumaki, Masaichiro*; Agui, Akane; Saito, Takashi*; Azuma, Masaki*; Shimakawa, Yuichi*; Takano, Mikio*; Uozumi, Takayuki*
no journal, ,
no abstracts in English
Igarashi, Takahiro; Nakazawa, Tetsuya; Tsuru, Tomohito; Kaji, Yoshiyuki
no journal, ,
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Fe(CO
)
(HO)Matsuda, Masaaki; Honda, Zentaro*
no journal, ,
We performed neutron inelastic scattering experiments in NaFe(CO)(HO) that consists of two-leg spin ladders of Fe
ions. We observed sharp magnetic excitation peaks around 
3.5 meV and 5.3 meV. This result shows that the magnetic excitations originate from almost isolated dimers, indicating that the interaction along the leg direction is negligibly small.
O
Wakimoto, Shuichi; Kimura, Hiroyuki*; Fukunaga, Mamoru*; Takeda, Masayasu; Kakurai, Kazuhisa; Noda, Yukio*
no journal, ,
no abstracts in English
Sr
NiO and LaBaCuOWakimoto, Shuichi; Ishii, Kenji; Ikeuchi, Kazuhiko; Kakurai, Kazuhisa; Mizuki, Junichiro; Kimura, Hiroyuki*; Noda, Yukio*; Adachi, Tadashi*; Koike, Yoji*; Fujita, Masaki*; et al.
no journal, ,
no abstracts in English
Masui, Tomomi; Shikinaka, Kazuhiro*; Koizumi, Satoshi; Kakugo, Akira*; Hashimoto, Takeji; Gong, J.*
no journal, ,
Hierarchical structures of F-actin, an anionic polyelectrolyte, and PDMAPAA-Q, a synthetic linear cationic polyelectrolyte (polycation), complexes in KCl salt solutions have been examined over a wide range of length scales from nanometer to micrometer using a combination of ultra-small-angle neutron scattering technique and fluorescence microscopy. We found hierarchical condensation of actin/polycation complex composed of a superbundle of 10 micrometer, protobundle of 100 nanometer, and protofilament (F-actin) of nanometer. These structures are largely influenced by salt concentrations. With increase of salt concentration superbundle structure changes from globular to extended states, simultaneously, the regularity of F-actin inside the protobundle increased and protobundle size increased about ten times larger. Further increase of salt concentration brings the protobundle disassemble to single F-actin.
Katayama, Yoshinori; Yomogida, Yoshiki; Saito, Hiroyuki; Aoki, Katsutoshi
no journal, ,
Hydrogen reacts with many metals and form metal hydrides. In transition metal hydrides, hydrogen atoms usually occupy interstitial sites and the crystalline lattice expands. To study effect of hydrogen to the structure of liquid metals, we have performed high-pressure X-ray diffraction experiments on liquid iron hydride. Measurements on liquid pure iron were also performed for comparison. Measurements were carried out on BL14B1 at SPring-8. LiAlH was used as a hydrogen source. Structure factor, S(Q), of liquids were obtained from X-ray diffraction data. Structure factors for iron and that for hydride are similar, although the second peak for hydride is more asymmetric. This asymmetry suggests some local orders in hydride. The peak positions are almost the same. Possible causes of the small change in Fe-Fe distance are (1) low concentration of hydrogen in the liquid state, and (2) superabundant vacancy formation reported in the solid state.
irradiated with high energy ions, 3Ohara, Kota; Ishikawa, Norito; Sakai, Seiji; Matsumoto, Yoshihiro; Michikami, Osamu*; Ota, Yasuyuki*; Kimura, Yutaka*
no journal, ,
Irradiation-induced new X-ray diffraction peak is analyzed based on the model that nano-meter size ion tracks are formed in ion-irradiated CeO. X-ray diffraction profile can be interpreted by taking account of overlapping effect.
Yamazaki, Dai; Maruyama, Ryuji; Soyama, Kazuhiko; Takai, Hiroyuki*; Nagai, Mikinori*; Yamamura, Kazuya*
no journal, ,
no abstracts in English
OKomatsu, Takuma*; Kambe, Takashi*; Michiuchi, Takamasa*; Hayakawa, Hironori*; Oishi, Daisuke*; Hanasaki, Noriaki*; Ikeda, Naoshi*; Yoshii, Kenji
no journal, ,
LuFeO is a ferroelectric material arising from the real-space ordering of Fe charges below 330 K. In this paper, we measured the magnetic-field dependence of dielectric response in this material. We report a change of dielectric constant depending on the measurement temperature and applied magnetic field.
Watanuki, Tetsu; Kawana, Daichi; Machida, Akihiko; Tsai, A. P.*
no journal, ,
no abstracts in English