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Al
through directional Compton profile measurementKoizumi, Akihisa*; Kubo, Yasunori*; Yamamoto, Etsuji; Haga, Yoshinori; Sakurai, Yoshiharu*
Journal of the Physical Society of Japan, 88(3), p.034714_1 - 034714_6, 2019/03
Times Cited Count：2 Percentile：21.15(Physics, Multidisciplinary)
Mn
)O
Shinoda, Ryoichi*; Ito, Masayoshi*; Sakurai, Yoshiharu*; Yamamoto, Hiroyuki; Hirao, Norie; Baba, Yuji; Iwase, Akihiro*; Matsui, Toshiyuki*
Journal of Applied Physics, 113(17), p.17E307_1 - 17E307_3, 2013/05
Times Cited Count：9 Percentile：37.98(Physics, Applied)We revealed that the Ba(CoMn)O (BCMO) ceramic samples exhibited ferromagnetic-dielectric behavior below the magnetic transition temperature of about 35 K. The origin of their magnetic ordering was expected to super-exchange coupling of Co
(
)-O
-Mn (
) with bonding angle of 180
. and/or Mn()-O-Mn () with bonding angle of 90. The magnetic spin momentum estimated by the magnetic Compton profiles (MCP) of the samples had similar temperature dependence as that determined by the SQUID measurement, which meant that the observed magnetic moments could be ascribed to the spin moment. The shapes of the MCPs of the samples were completely same regardless of the temperature measured. This result indicates that there are no changes of the momentum space distribution of spin density between ferromagnetic and paramagnetic states. So, this magnetic transition is simply caused by a thermal fluctuation of the spin.
Co
film by magnetic Compton scatteringAgui, Akane; Matsumoto, Sayaka*; Sakurai, Hiroshi*; Tsuji, Naruki*; Homma, Satoshi*; Sakurai, Yoshiharu*; Ito, Masayoshi*
Applied Physics Express, 4(8), p.083002_1 - 083002_3, 2011/08
Times Cited Count：14 Percentile：51.56(Physics, Applied)We have succeeded in measuring microscopic magnetic hysteresis loop of amorphous TbCo film. Spin selective magnetic hysteresis (SSMH) loop was measured by magnetic Compton scattering at synchrotron radiation facility SPring-8 and obtaining orbital selective magnetic hysteresis (OSMH) loop was firstly obtained by combining with result of macroscopic magnetic hysteresis loop.
Kosugi, Shinya*; Matsui, Toshiyuki*; Ishikawa, Norito; Ito, Masayoshi*; Sakurai, Yoshiharu*; Aiko, Kazuma*; Shimizu, Hirotaka*; Tahara, Yuki*; Hori, Fuminobu*; Iwase, Akihiro*
Journal of Applied Physics, 109(7), p.07B737_1 - 07B737_3, 2011/04
Times Cited Count：7 Percentile：31.23(Physics, Applied)The magnetic Compton profiles of FeRh intermetallic compound were measured to study the ferromagnetism induced by 200 MeV Xe ion irradiation. The magnetic effect at 50 K increases with increasing the ion-fluence. The analysis of the experimental result revealed that the values of spin moment induced by the irradiation were close to the values of magnetization obtained by a superconducting quantum interference device magnetometer, suggesting that the ion irradiation mainly induces the spin magnetic moment.
Kato, Masato; Sakurai, Koji*; Kano, Yoshiharu*; Funasaka, Hideyuki; Yamamoto, Kazunori; *; Wada, Yukio
PNC TN8410 92-060, 7 Pages, 1992/03
None
Sakurai, Hiroshi*; Tamura, Takuro*; Kurachi, Toshitaka*; Homma, Satoshi*; Oike, Hiromi*; Agui, Akane; Sakurai, Yoshiharu*; Ito, Masayoshi*; Adachi, Hiromichi*; Kawata, Hiroshi*
no journal, ,
no abstracts in English
Matsumoto, Sayaka*; Agui, Akane; Sakurai, Yoshiharu*; Ito, Masayoshi*; Homma, Satoshi*; Tsuji, Naruki*; Sakurai, Hiroshi*
no journal, ,
no abstracts in English
Agui, Akane; Matsumoto, Sayaka*; Sakurai, Yoshiharu*; Ito, Masayoshi*; Homma, Satoshi*; Tsuji, Naruki*; Sakurai, Hiroshi*
no journal, ,
no abstracts in English
Agui, Akane; Matsumoto, Sayaka*; Sakurai, Hiroshi*; Homma, Satoshi*; Tsuji, Naruki*; Sakurai, Yoshiharu*; Ito, Masayoshi*
no journal, ,
no abstracts in English
Sakurai, Hiroshi*; Agui, Akane; Matsumoto, Sayaka*; Ito, Masayoshi*; Sakurai, Yoshiharu*
no journal, ,
no abstracts in English
Sakurai, Satoshi; Kimura, Yoshiki; Sato, Kaneaki; Toda, Nobufumi; Shinoda, Yoshiharu; Okubo, Ayako; Magara, Masaaki; Watahiki, Masaru; Kuno, Yusuke
no journal, ,
The national statement made by the Japan Government at 2010 Nuclear Security Summit (Washington D.C., U.S.A.) was to develop its nuclear forensics detection and analysis technologies in a three-year period and to share them with the international community to contribute to strengthening the nuclear security regime. The Japan Atomic Energy Agency, the organization that possesses analytical capabilities with the potential to fulfill this nuclear forensics mission, started R&D on nuclear forensics technology from JFY 2011. The main areas of development are isotopic ratio analysis, impurity analysis, uranium age determination, etc. The cooperation with US-DOE and EC-JRC were also started to effectively promote the technical development. In the presentation reported will be progress in R&D to establish nuclear forensics analytical capabilities and international cooperation.
Minegishi, Katsuhiko*; Agui, Akane; Sakurai, Hiroshi*; Ito, Masayoshi*; Sakurai, Yoshiharu*
no journal, ,
no abstracts in English
