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Journal Articles

Discriminative measurement of absorbed dose rates in air from natural and artificial radionuclides in Namie Town, Fukushima Prefecture

Ogura, Koya*; Hosoda, Masahiro*; Tamakuma, Yuki*; Suzuki, Takahito*; Yamada, Ryohei; Negemi, Ryoju*; Tsujiguchi, Takakiyo*; Yamaguchi, Masaru*; Shiroma, Yoshitaka*; Iwaoka, Kazuki*; et al.

International Journal of Environmental Research and Public Health, 18(3), p.978_1 - 978_16, 2021/02

 Times Cited Count:1 Percentile:76.35(Environmental Sciences)

Journal Articles

Cesium concentrations in various environmental media at Namie, Fukushima

Heged$"u$s, M.*; Shiroma, Yoshitaka*; Iwaoka, Kazuki*; Hosoda, Masahiro*; Suzuki, Takahito*; Tamakuma, Yuki*; Yamada, Ryohei; Tsujiguchi, Takakiyo*; Yamaguchi, Masaru*; Ogura, Koya*; et al.

Journal of Radioanalytical and Nuclear Chemistry, 323(1), p.197 - 204, 2020/01

 Times Cited Count:3 Percentile:57.07(Chemistry, Analytical)

The radioactivity of cesium in the water and sediments of two major rivers was measured along with airborne radioactivity in Namie Town, after the recent partial lift on the evacuation order in 2017. The observed concentrations were up to 384 $$pm$$ 11 mBq/L for $$^{137}$$Cs in unfiltered water and 1.28 $$pm$$ 0.09 mBq/m$$^{3}$$ for $$^{137}$$Cs in air, while the sediment had a maximum of 44900 $$pm$$ 23.4 Bq/kg for $$^{137}$$Cs. The $$^{134}$$Cs/$$^{137}$$Cs ratios indicate the main origin of the cesium in the sediment to be Unit 1 in good agreement with previous reports on the accident.

Journal Articles

Observation of anisotropic magneto-Peltier effect in nickel

Uchida, Kenichi*; Daimon, Shunsuke*; Iguchi, Ryo*; Saito, Eiji

Nature, 558(7708), p.95 - 99, 2018/06

 Times Cited Count:40 Percentile:92.78(Multidisciplinary Sciences)

Journal Articles

New precise measurement of muonium hyperfine structure interval at J-PARC

Ueno, Yasuhiro*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Keiichi*; Ito, Takashi; Iwasaki, Masahiko*; et al.

Hyperfine Interactions, 238(1), p.14_1 - 14_6, 2017/11

 Times Cited Count:3 Percentile:90.77

Journal Articles

Spin current generation using a surface acoustic wave generated via spin-rotation coupling

Kobayashi, Daima*; Yoshikawa, Tomohide*; Matsuo, Mamoru*; Iguchi, Ryo*; Maekawa, Sadamichi; Saito, Eiji; Nozaki, Yukio*

Physical Review Letters, 119(7), p.077202_1 - 077202_5, 2017/08

 Times Cited Count:58 Percentile:96.25(Physics, Multidisciplinary)

Journal Articles

Thermographic measurements of the spin Peltier effect in metal/yttrium-iron-garnet junction systems

Daimon, Shunsuke*; Uchida, Kenichi*; Iguchi, Ryo*; Hioki, Tomosato*; Saito, Eiji

Physical Review B, 96(2), p.024424_1 - 024424_12, 2017/07

 Times Cited Count:22 Percentile:80.96(Materials Science, Multidisciplinary)

Journal Articles

Generation of megahertz-band spin currents using nonlinear spin pumping

Watanabe, Shingo*; Hirobe, Daichi*; Shiomi, Yuki*; Iguchi, Ryo*; Daimon, Shunsuke*; Kameda, Mai*; Takahashi, Saburo*; Saito, Eiji

Scientific Reports (Internet), 7, p.4576_1 - 4576_6, 2017/07

 Times Cited Count:4 Percentile:28.18(Multidisciplinary Sciences)

Journal Articles

Time-resolved study of field-induced suppression of longitudinal spin Seebeck effect

Hioki, Tomosato*; Iguchi, Ryo*; Qiu, Z.*; Hou, D.*; Uchida, Kenichi*; Saito, Eiji

Applied Physics Express, 10(7), p.073002_1 - 073002_4, 2017/06

 Times Cited Count:9 Percentile:53.89(Physics, Applied)

Journal Articles

Concomitant enhancement of the longitudinal spin Seebeck effect and the thermal conductivity in a Pt/YIG/Pt system at low temperatures

Iguchi, Ryo*; Uchida, Kenichi*; Daimon, Shunsuke*; Saito, Eiji

Physical Review B, 95(17), p.174401_1 - 174401_7, 2017/05

 Times Cited Count:30 Percentile:86.49(Materials Science, Multidisciplinary)

Journal Articles

Measurement of spin pumping voltage separated from extrinsic microwave effects

Iguchi, Ryo*; Saito, Eiji

Journal of the Physical Society of Japan, 86(1), p.011003_1 - 011003_13, 2017/01

 Times Cited Count:41 Percentile:93.58(Physics, Multidisciplinary)

Journal Articles

One-dimensional spinon spin currents

Hirobe, Daichi*; Sato, Masahiro*; Kawamata, Takayuki*; Shiomi, Yuki*; Uchida, Kenichi*; Iguchi, Ryo*; Koike, Yoji*; Maekawa, Sadamichi; Saito, Eiji

Nature Physics, 13(1), p.30 - 34, 2017/01

 Times Cited Count:62 Percentile:96.63(Physics, Multidisciplinary)

Journal Articles

New muonium HFS measurements at J-PARC/MUSE

Strasser, P.*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Keiichi*; Ito, Takashi; Iwasaki, Masahiko*; et al.

Hyperfine Interactions, 237(1), p.124_1 - 124_9, 2016/12

 Times Cited Count:6 Percentile:92.96

Journal Articles

Thermal imaging of spin Peltier effect

Daimon, Shunsuke*; Iguchi, Ryo*; Hioki, Tomosato*; Saito, Eiji; Uchida, Kenichi*

Nature Communications (Internet), 7, p.13754_1 - 13754_7, 2016/12

 Times Cited Count:65 Percentile:94.39(Multidisciplinary Sciences)

Journal Articles

Observation of temperature-gradient-induced magnetization

Hou, D.*; Qiu, Z.*; Iguchi, Ryo*; Sato, Koji*; Vehstedt, E. K.*; Uchida, Kenichi*; Bauer, G. E. W.*; Saito, Eiji

Nature Communications (Internet), 7, p.12265_1 - 12265_6, 2016/07

 Times Cited Count:10 Percentile:65.26(Multidisciplinary Sciences)

Journal Articles

Spin-current-driven thermoelectric generation based on interfacial spin-orbit coupling

Yagmur, A.*; Karube, Shutaro*; Uchida, Kenichi*; Kondo, Kota*; Iguchi, Ryo*; Kikkawa, Takashi*; Otani, Yoshichika*; Saito, Eiji

Applied Physics Letters, 108(24), p.242409_1 - 242409_4, 2016/06

 Times Cited Count:5 Percentile:31.74(Physics, Applied)

Journal Articles

Progress report of Japanese simulation research projects using the high-performance computer system Helios in the International Fusion Energy Research Centre

Ishizawa, Akihiro*; Idomura, Yasuhiro; Imadera, Kenji*; Kasuya, Naohiro*; Kanno, Ryutaro*; Satake, Shinsuke*; Tatsuno, Tomoya*; Nakata, Motoki*; Nunami, Masanori*; Maeyama, Shinya*; et al.

Purazuma, Kaku Yugo Gakkai-Shi, 92(3), p.157 - 210, 2016/03

The high-performance computer system Helios which is located at The Computational Simulation Centre (CSC) in The International Fusion Energy Research Centre (IFERC) started its operation in January 2012 under the Broader Approach (BA) agreement between Japan and the EU. The Helios system has been used for magnetised fusion related simulation studies in the EU and Japan and has kept high average usage rate. As a result, the Helios system has contributed to many research products in a wide range of research areas from core plasma physics to reactor material and reactor engineering. This project review gives a short catalogue of domestic simulation research projects. First, we outline the IFERC-CSC project. After that, shown are objectives of the research projects, numerical schemes used in simulation codes, obtained results and necessary computations in future.

Journal Articles

Reducing galvanomagnetic effects in spin pumping measurement with Co$$_{75}$$Fe$$_{25}$$ as a spin injector

Haidar, S. M.*; Iguchi, Ryo*; Yagmur, A.*; Lustikova, J.*; Shiomi, Yuki*; Saito, Eiji

Journal of Applied Physics, 117(18), p.183906_1 - 183906_6, 2015/05

 Times Cited Count:5 Percentile:27.89(Physics, Applied)

Journal Articles

Laser micro-processing as a tool for constructing insulator-based magnonic crystal

Daimon, Shunsuke*; Iguchi, Ryo*; Uchida, Kenichi*; Saito, Eiji

Journal of Physics D; Applied Physics, 48(16), p.164014_1 - 164014_4, 2015/04

 Times Cited Count:6 Percentile:27.89(Physics, Applied)

Journal Articles

Density and X-ray emission profile relationships in highly ionized high-Z laser-produced plasmas

Yoshida, Kensuke*; Fujioka, Shinsuke*; Higashiguchi, Takeshi*; Ugomori, Teruyuki*; Tanaka, Nozomi*; Kawasaki, Masato*; Suzuki, Yuhei*; Suzuki, Chihiro*; Tomita, Kentaro*; Hirose, Ryoichi*; et al.

Applied Physics Letters, 106(12), p.121109_1 - 121109_5, 2015/03

 Times Cited Count:6 Percentile:32.7(Physics, Applied)

Journal Articles

Spin Hall magnetoresistance at high temperatures

Uchida, Kenichi*; Qiu, Z.*; Kikkawa, Takashi*; Iguchi, Ryo*; Saito, Eiji

Applied Physics Letters, 106(5), p.052405_1 - 052405_5, 2015/02

 Times Cited Count:15 Percentile:62.19(Physics, Applied)

83 (Records 1-20 displayed on this page)