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using vibrational spectroscopiesSakurai, Yoko; Machida, Akihiko; Aoki, Katsutoshi
no journal, ,
no abstracts in English
Kambe, Shinsaku; Tokunaga, Yo; Sakai, Hironori; Chudo, Hiroyuki; Matsuda, Tatsuma; Yasuoka, Hiroshi; Haga, Yoshinori; Onuki, Yoshichika
no journal, ,
T-dependence and anisotropy of Knight shift and spin-lattice relaxation time T1 of In-NMR have been determined in heavy fermion superconductor CeIrIn. Knight shift and T1 show a strong anisotropy. Knight shift versus static susceptibility plot is non-linear at low temperatures, indicating that the hyperfine coupling depends on temperature. The origin of hyperfine interaction and anisotropy of spin fluctuations will be discussed.
Ikeda, Takashi
no journal, ,
no abstracts in English
Moribayashi, Kengo
no journal, ,
no abstracts in English
Sakai, Toru; Tonegawa, Takashi*; Okamoto, Kiyomi*
no journal, ,
The S=1/2 distorted diamond chain is investigated by the density matrix renormalization group and the numerical exact diagonalization. We found that an incommensurate long-range order is induced by the external magnetic field above the 1/3 magnetization plateau. We using this result theoretically explain the field induced incommensurate order observed in the azurite.
- interaction on the multi-Kaonic nucleiMuto, Takumi*; Maruyama, Toshiki; Tatsumi, Toshitaka*
no journal, ,
no abstracts in English
-ray beam from inverse Compton scatteringShizuma, Toshiyuki; Hayakawa, Takehito; Kikuzawa, Nobuhiro; Ogaki, Hideaki*; Toyokawa, Hiroyuki*; Komatsubara, Tetsuro*
no journal, ,
no abstracts in English
Ca
Cu
O
(
= 0, 6) by resonant inelastic X-ray scatteringYoshida, Masahiro; Ishii, Kenji; Jarrige, I.; Ikeuchi, Kazuhiko; Murakami, Yoichi*; Mizuki, Junichiro; Tsutsui, Kenji; Toyama, Takami*; Maekawa, Sadamichi*; Kudo, Kazutaka*; et al.
no journal, ,
no abstracts in English
Kajimoto, Ryoichi; Yokoo, Tetsuya*; Nakamura, Mitsutaka; Nakajima, Kenji; Inamura, Yasuhiro; Takahashi, Nobuaki; Maruyama, Ryuji; Soyama, Kazuhiko; Mizuno, Fumio; Shibata, Kaoru; et al.
no journal, ,
no abstracts in English
Murakami, Hiroshi; Nishi, Takaki; Toyota, Yuji
no journal, ,
no abstracts in English
-BaTiO solid solutionYoneda, Yasuhiro; Yoshii, Kenji; Mori, Shigeo*
no journal, ,
Local structure analysis of 0.75BiFeO-0.25BaTiO solid solution was carried out by a synchrotron radiation X-ray pair-distribution function (PDF) method with the temperature range from room temperature to 900
C. The 0.75BiFeO-0.25BaTiO occurred two phase transitions. The average structure of changed from low-temperature rhombohedral structure to pseudo-cubic structure at 500C, but the local structure unchanged. The local structure changed at second phase transition from pseudo cubic structure to cubic structure at 800
C. The local structure of the pseudo-cubic phase can be reproduced not by the average cubic structure but by the distorted rhombohedral structure.
Nakajima, Kenji; Kawamura, Seiko; Kajimoto, Ryoichi; Inamura, Yasuhiro; Takahashi, Nobuaki; Osakabe, Toyotaka; Wakimoto, Shuichi; Nakamura, Mitsutaka; Ito, Shinichi*; Aizawa, Kazuya; et al.
no journal, ,
no abstracts in English
-ray spectroscopy of 
Cf using neutron-transfer reactionsTakahashi, Ryuta; Ishii, Tetsuro; Nagae, Daisuke; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Ishii, Yasuo; Matsuda, Makoto; Shizuma, Toshiyuki; Makii, Hiroyuki*; et al.
no journal, ,
no abstracts in English
Fujimori, Shinichi; Okochi, Takuo; Okane, Tetsuo; Saito, Yuji; Yamagami, Hiroshi; Fujimori, Atsushi; Aoki, Dai*; Ikeda, Shugo*; Matsuda, Tatsuma; Haga, Yoshinori; et al.
no journal, ,
We have performed synchrotron radiation photoemission study on UFeGa, UB, UPd, UPdAl, UNiAl, URuSi, UPt, UGe, UIr, UPtGa, USb, and UN. Their electronic structures are discussed based on their valence band and core-level photoelectron spectra.
Nakatani, Takeshi; Inamura, Yasuhiro; Ito, Takayoshi; Kajimoto, Ryoichi; Aoyagi, Tetsuo; Ohara, Takashi; Otomo, Toshiya*; Yasu, Yoshiji*; Suzuki, Jiro*; Morishima, Takahiro*; et al.
no journal, ,
We have started the commissioning of the neutron scattering experiment instruments since May 2008 in MLF, J-PARC. Simultaneously, we have started the commissioning of the data acquisition and analysis software. Experimental users operate this software through the software framework which we have developed. The software framework was developed based on Python which is an object oriented script language. The system implemented with the software framework can seamlessly measure, analyze and visualize with some modules which are experimental control and data analysis. In this presentation, we report the process of the construction and the current status of the software.
Maruyama, Ryuji; Yamazaki, Dai; Ebisawa, Toru*; Soyama, Kazuhiko
no journal, ,
no abstracts in English
Maekawa, Masaki; Kawasuso, Atsuo
no journal, ,
We have developed a positron microprobe apparatus and also applied it for the research of the nuclear materials. Although the Doppler-broadening measurement was possible using continuous positron beam, positron lifetime annihilation measurement can be carried out using pulsed positron beam formed by a pulsing system which is inserting in the beam line. From the performance test, pulse width of approximately 150ps was confirmed. It was also confirmed that a difference of the lifetime of stainless steel and silicone was detectable. Moreover, our apparatus can be utilized also as a usual scanning electron microscope using the electron gun equipped on the beam port. The complex research using a positron and an electron beam might be possible.
Sugai, Takashi; Haga, Yoshinori; Matsuda, Tatsuma; Yamamoto, Etsuji; Tateiwa, Naoyuki
no journal, ,
no abstracts in English
Hayakawa, Takehito; Iwamoto, Nobuyuki; Kajino, Toshitaka*; Shizuma, Toshiyuki; Umeda, Hideyuki*; Nomoto, Kenichi*
no journal, ,
About 99% of nuclides heavier than an iron group were dominantly synthesized by neutron capture nucleosynthesis processes. In contrast, there is 35 p-nuclei, which cannot be synthesized by the neutron capture reactions. Among the 35 p-nuclei, evidence that 27 p-nuclei are synthesized by photon-induced reactions in supernova explosions was found. However, the origin of the other 8 p-nuclei has been remained as an open question. Here we discuss the method to understand these origin by using astronomical observation and meteorite analyses. We suggest a primitive meteorite analysis for the study of Mo, Ru, and Sm origins. Since Mo and Ru (Sm) locate near the neutron magic number of N=50 (82), their origins may be correlated. There are two isotopes of In-113 and In-115 and astronomical observation of these two isotope ratio is useful for understanding the origin of these nuclei.