publication_type publication_year number author title journal_title volume_number issue_number start_page end_page doi reported_at Paper 2022 1 Xiaobo Zhu, Tobias U. Schülli, Xiaowei Yang, Tongen Lin, Yuxiang Hu, Ningyan Cheng, Hiroki Fujii, Kiyoshi Ozawa, Bruce Cowie, Qinfen Gu, Si Zhou, Zhenxiang Cheng, Yi Du, Lianzhou Wang Nature Communications 13 1 https://doi.org/10.1038/s41467-022-28963-9 2024-04-27 12:08:11 +0900 Paper 2022 2 Hiroki Fujii Physica C: Superconductivity and its Applications 603 1354172 https://doi.org/10.1016/j.physc.2022.1354172 2024-04-27 12:08:11 +0900 Paper 2021 1 Hiroki Fujii, Takeshi Kato Improved critical current density property in ex situ processed MgB2 tapes using filling powders with metallic particle addition Physica C: Superconductivity and its Applications 591 1353972 https://doi.org/10.1016/j.physc.2021.1353972 2024-04-27 12:08:11 +0900 Paper 2021 2 Hiroki Fujii, Hitoshi Kitaguchi Superconducting properties of sintered ex situ MgB2 tapes through ball milling process as a function of crystallite size in the as-milled and sintered states Physica C: Superconductivity and its Applications 583 1353838 https://doi.org/10.1016/j.physc.2021.1353838 2024-04-27 12:08:11 +0900 Paper 2020 1 Hiroki Fujii, Hitoshi Kitaguchi Reduced sintering temperature in ex situ processed MgB2 tapes using filling powders with Sn addition Physica C: Superconductivity and its Applications 576 1353704 https://doi.org/10.1016/j.physc.2020.1353704 2024-04-27 12:08:11 +0900 Paper 2019 1 Hiroki Fujii, Akio Iwanade, Hitoshi Kitaguchi WC contamination or addition effect on the superconducting properties in ex situ processed MgB2 tapes using unmilled and ball milled filling powders Physica C: Superconductivity and its Applications 559 32 41 https://doi.org/10.1016/j.physc.2019.01.012 2024-04-27 12:08:11 +0900 Paper 2018 1 Xiaobo Zhu, Takashi Mochiku, Hiroki Fujii, Kaibin Tang, Yuxiang Hu, Zhenguo Huang, Bin Luo, Kiyoshi Ozawa, Lianzhou Wang A new sodium iron phosphate as a stable high-rate cathode material for sodium ion batteries Nano Research 11 12 6197 6205 https://doi.org/10.1007/s12274-018-2139-0 2024-04-27 12:08:11 +0900 Paper 2018 2 Hiroki Fujii, Akio Iwanade, Satoshi Kawada, Hitoshi Kitaguchi The reduction of optimal heat treatment temperature and critical current density enhancement of ex situ processed MgB2 tapes using ball milled filling powder Cryogenics 89 76 84 https://doi.org/10.1016/j.cryogenics.2017.11.008 2024-04-27 12:08:11 +0900 Paper 2017 1 Hiroki Fujii, Akira Ishitoya, Shinji Itoh, Kiyoshi Ozawa, Hitoshi Kitaguchi 高エネルギーボールミル処理による粒径及び結晶子微細化によって改善されたex situ法MgB2線材の臨界電流密度 Cryogenics 82 15 24 https://doi.org/10.1016/j.cryogenics.2017.01.002 2024-04-27 12:08:11 +0900 Paper 2016 1 Hiroki Fujii, Akira Ishitoya, Shinji Itoh, Kiyoshi Ozawa, Hitoshi Kitaguchi ex situ法MgB2線材において充填粉へのCa化合物添加がMgOの減少と臨界電流密度特性に及ぼす効果 Journal of Alloys and Compounds 664 650 656 https://doi.org/10.1016/j.jallcom.2016.01.027 2024-04-27 12:08:11 +0900 Paper 2016 2 大内 皓, 山田 豊, 金田 尚也, 藤井 宏樹, 熊倉 浩明 外部拡散法 MgB2 超伝導線材の組織と超伝導特性 日本金属学会誌 80 7 447 451 https://doi.org/10.2320/jinstmet.jc201602 2024-04-27 12:08:11 +0900 Paper 2015 1 Yasuhiro NAKAO, Kiyoshi OZAWA, Yoshihiro NEMOTO, Fumihiko UESUGI, Hiroki FUJII, Takashi MOCHIKU Structural variation of Li2MnO3 during charge–discharge cycling Journal of the Ceramic Society of Japan 123 1439 589 594 https://doi.org/10.2109/jcersj2.123.589 2024-04-27 12:08:11 +0900 Paper 2015 2 茂筑 高士, 土屋 佳則, 鈴木悠介, 藤井 宏樹, 松下 能孝, 坂田 修身, 田中 雅彦, 勝矢 良雄 Cuをドープしたトポロジカル絶縁体CuxBi2Se3の結晶構造 Spring-8/SACLA利用研究成果集 3 1 17 19 2024-04-27 12:08:11 +0900 Paper 2014 1 H Takeya, M ElMassalami, H S Amorim, H Fujii, T Mochiku, Y Takano On the superconductivity of the LixRhBy compositions Materials Research Express 1 4 046001 https://doi.org/10.1088/2053-1591/1/4/046001 2024-04-27 12:08:11 +0900 Paper 2014 2 Zhenxiang Cheng, Fang Hong, Yuanxu Wang, Kiyoshi Ozawa, Hiroki Fujii, Hideo Kimura, Yi Du, Xiaolin Wang, Shixue Dou Interface Strain-Induced Multiferroicity in a SmFeO3 Film ACS Applied Materials & Interfaces 6 10 7356 7362 https://doi.org/10.1021/am500762c 2024-04-27 12:08:11 +0900 Paper 2014 3 H Fujii, K Ozawa, H Kitaguchi 種々の出発原料を用いて作製した炭素置換MgB2-xCx粉の精製がex situ法線材の組織と臨界電流密度に及ぼす効果 Superconductor Science and Technology 27 3 035002 https://doi.org/10.1088/0953-2048/27/3/035002 2024-04-27 12:08:11 +0900 Paper 2013 1 Hiroki Fujii, Kiyoshi Ozawa, Takashi Mochiku 電子線回折および高分解能電子顕微鏡による層状Li2-d(Mn1-xCox)1+dO3の研究 Journal of Solid State Chemistry 203 345 352 https://doi.org/10.1016/j.jssc.2013.04.043 2024-04-27 12:08:11 +0900 Paper 2013 2 R. Itoh, Y. Oga, S. Noguchi, H. Igarashi Mg添加によって改善されたex situ法炭素置換MgB2線材の臨界電流密度特性 IEEE Transactions on Applied Superconductivity 23 3 4600905 4600905 https://doi.org/10.1109/tasc.2012.2234194 2024-04-27 12:08:11 +0900 Paper 2013 3 Hiroyuki Takeya, Mohammed ElMassalami, Luis A Terrazos, Raul E Rapp, Rodrigo B Capaz, Hiroki Fujii, Yoshihiko Takano, Mathias Doerr, Sergey A Granovsky Probing the electronic properties of ternary AnM3n-1B2n (n=1:A= Ca, Sr; M=Rh, Ir and n=3:A= Ca, Sr; M=Rh) phases:observation of superconductivity Science and Technology of Advanced Materials 14 3 035003 https://doi.org/10.1088/1468-6996/14/3/035003 2024-04-27 12:08:11 +0900 Paper 2012 1 H Fujii, K Ozawa, H Kitaguchi 油でボールミリング処理された充填粉への炭素添加がex situ法MgB2線材の臨界電流密度へ及ぼす効果 Superconductor Science and Technology 25 10 105008 https://doi.org/10.1088/0953-2048/25/10/105008 2024-04-27 12:08:11 +0900 Paper 2012 2 H Fujii, K Ozawa, H Kitaguchi ex situ法炭素置換MgB2線材においてMg添加によって改善された臨界電流密度 Superconductor Science and Technology 25 6 065008 https://doi.org/10.1088/0953-2048/25/6/065008 2024-04-27 12:08:11 +0900 Paper 2012 3 Kiyoshi Ozawa, Yasuhiro Nakao, Takashi Mochiku, Zhenxiang Cheng, Lianzhou Wang, Hideo Iwai, Yoshinori Tsuchiya, Hiroki Fujii, Naoki Igawa Electrochemical Characteristics of Layered Li1.95Mn0.9Co0.15O3(C2/m) as a Lithium-Battery Cathode Journal of The Electrochemical Society 159 3 A300 A304 https://doi.org/10.1149/2.079203jes 2024-04-27 12:08:11 +0900 Paper 2011 1 H Fujii, K Ozawa Mg(BH4)2前駆体を用いたPIT法MgB2線材の超伝導特性 Superconductor Science and Technology 24 9 095009 https://doi.org/10.1088/0953-2048/24/9/095009 2024-04-27 12:08:11 +0900 Paper 2011 2 Hiroki Fujii, Kazumasa Togano, Kiyoshi Ozawa, Hiroaki Kumakura 加熱処理したex situ法MgB2線材におけるシース材に依存する負の効果 IEEE Transactions on Applied Superconductivity 21 3 2664 2667 https://doi.org/10.1109/tasc.2010.2089032 2024-04-27 12:08:11 +0900 Paper 2011 3 藤井 宏樹 有機酸溶液処理を施したMgB2粉を用いて作製したex situ法線材における炭素置換と超伝導特性 低温工学 46 1 2 9 https://doi.org/10.2221/jcsj.46.2 2024-04-27 12:08:11 +0900 Paper 2011 4 Hiroyuki Takeya, Hiroki Fujii, Mohammed ElMassalami, Francisco Chaves, Shuuichi Ooi, Takashi Mochiku, Yoshihiko Takano, Kazuto Hirata, Kazumasa Togano A New Noncentrosymmetric Superconducting Phase in the Li–Rh–B System Journal of the Physical Society of Japan 80 1 013702 https://doi.org/10.1143/jpsj.80.013702 2024-04-27 12:08:11 +0900 Paper 2010 1 H Fujii, K Ozawa Mg(BH4)2の分解から作製したMgB2の臨界温度と炭素置換 Superconductor Science and Technology 23 12 125012 https://doi.org/10.1088/0953-2048/23/12/125012 2024-04-27 12:08:11 +0900 Paper 2010 2 H. Fujii, A. Sato BaNiSn3型三元系ゲルマニウム化合物SrMGe3(M=Ir,Pd,Pt) Journal of Alloys and Compounds 508 2 338 341 https://doi.org/10.1016/j.jallcom.2010.08.150 2024-04-27 12:08:11 +0900 Paper 2010 3 H. Fujii, K. Ozawa 溶液処理したMgB2粉末を用いて作製したex-situ法MgB2超伝導線材のJc-B特性に対する溶液温度と濃度の効果 Physica C: Superconductivity 470 5-6 326 330 https://doi.org/10.1016/j.physc.2010.01.065 2024-04-27 12:08:11 +0900 Paper 2009 1 H. Fujii, A. Sato 三元系ゲルマニウム化合物SrM2Ge2(M=Ni,Ir)の結晶構造 Journal of Alloys and Compounds 487 1-2 198 201 https://doi.org/10.1016/j.jallcom.2009.08.050 2024-04-27 12:08:11 +0900 Paper 2009 2 H. Fujii, A. Sato SrPd2Ge2の超伝導 Physical Review B 79 22 https://doi.org/10.1103/physrevb.79.224522 2024-04-27 12:08:11 +0900 Paper 2009 3 FUJII, Hiroki, TOGANO, Kazumasa, KUMAKURA, Hiroaki, OZAWA, Kiyoshi 化学溶液処理した粉を用いてex-situ法で作製したMgB2-xCx線材での改善された臨界電流密度 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2698 2701 2024-04-27 12:08:11 +0900 Paper 2008 1 S Kasahara, H Fujii, H Takeya, T Mochiku, A D Thakur, K Hirata Low temperature specific heat of superconducting ternary intermetallics La3Pd4Ge4, La3Ni4Si4, and La3Ni4Ge4 with U3Ni4Si4-type structure Journal of Physics: Condensed Matter 20 38 385204 https://doi.org/10.1088/0953-8984/20/38/385204 2024-04-27 12:08:11 +0900 Paper 2008 2 MOCHIKU, Takashi, TUERXUN, Wuernisha, HATA Yoshiaki, HOSHIKAWA Akinori, FUJII, Hiroki, YASUOKA Hiroshi, HIRATA, Kazuto Ndを置換したFeSr2YCu2O6+δ磁性超伝導体の中性子回折 PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 1174 1177 2024-04-27 12:08:11 +0900 Paper 2008 3 H Fujii, K Togano, K Ozawa 化学処理した粉末を用いてex-situ法で作製したFeシース炭素置換MgB2線材の粒間結合と臨界電流密度 Superconductor Science and Technology 21 9 095018 https://doi.org/10.1088/0953-2048/21/9/095018 2024-04-27 12:08:11 +0900 Paper 2008 4 KASAHARA, Shigeru, FUJII, Hiroki, MOCHIKU, Takashi, TAKEYA, Hiroyuki, HIRATA, Kazuto Specific heat of novel ternary superconductors La3Ni4X4 (X = Si and Ge) PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 1231 1233 2024-04-27 12:08:11 +0900 Paper 2008 5 KASAHARA, Shigeru, FUJII, Hiroki, MOCHIKU, Takashi, TAKEYA, Hiroyuki, HIRATA, Kazuto Low temperature specific heat of ternary germanide superconductor La3Pd4Ge4 PHYSICA B-CONDENSED MATTER 1119 1121 2024-04-27 12:08:11 +0900 Paper 2008 6 H Fujii, S Kasahara 三元系金属間化合物La3Ni4X4(X=Si,Ge)4の超伝導 Journal of Physics: Condensed Matter 20 7 075202 https://doi.org/10.1088/0953-8984/20/7/075202 2024-04-27 12:08:11 +0900 Paper 2008 7 H. Fujii, K. Togano, K. Ozawa 種々の化学溶液で処理した粉を用いてex-situ法で作製したMgB2線材において改善された臨界電流密度 Journal of Materials Research 23 02 507 514 https://doi.org/10.1557/jmr.2008.0059 2024-04-27 12:08:11 +0900 Paper 2008 8 H Fujii, K Togano, K Ozawa SiC粉末の添加と化学処理がex-situ法MgB2線材の結晶粒間結合と臨界電流密度に及ぼす影響 Superconductor Science and Technology 21 1 015002 https://doi.org/10.1088/0953-2048/21/01/015002 2024-04-27 12:08:11 +0900 Paper 2007 1 Kiyoshi Ozawa, Yasuhiro Nakao, Lianzhou Wang, Zhenxiang Cheng, Hiroki Fujii, Masashi Hase, Mika Eguchi Structural modifications caused by electrochemical lithium extraction for two types of layered LiVO2 (R3-m) Journal of Power Sources 174 2 469 472 https://doi.org/10.1016/j.jpowsour.2007.06.100 2024-04-27 12:08:11 +0900 Paper 2007 2 MOCHIKU, Takashi, FUJII, Hiroki, TAKEYA, Hiroyuki, WUERNISHA Tuerxun, MORI Kazuhiro, ISHIGAKI Toru, KAMIYAMA Takashi, HIRATA, Kazuto 超伝導La-Pd-Ge系におけるBaAl4型派生構造 PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 182 186 2024-04-27 12:08:11 +0900 Paper 2007 3 MOCHIKU, Takashi, HATA Yoshiaki, WUERNISHA Tuerxun, MORI Kazuhiro, ISHIGAKI Toru, KAMIYAMA Takashi, FUJII, Hiroki, YASUOKA Hiroshi, HIRATA, Kazuto FeSr2(Tb,Ce)2Cu2O8+δにおけるCuO2面間の蛍石構造の効果 PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 726 727 2024-04-27 12:08:11 +0900 Paper 2007 4 K Togano, H Fujii, T Takeuchi, H Kumakura 内部Mg-Li合金複合法によるMgB2線材の作製 Superconductor Science and Technology 20 7 629 633 https://doi.org/10.1088/0953-2048/20/7/008 2024-04-27 12:08:11 +0900 Paper 2007 5 H Fujii, K Togano, H Kumakura, K Ozawa 化学処理した粉を用いてex-situ法で作製したMgB2線材の超伝導特性に及ぼすSiC添加効果 Superconductor Science and Technology 20 6 579 583 https://doi.org/10.1088/0953-2048/20/6/016 2024-04-27 12:08:11 +0900 Paper 2007 6 H. Fujii, K. Togano, K. Ozawa 化学処理した粉を用いてex-situ法で作製したMgB2線材の改善された臨界電流密度 Journal of Materials Research 22 05 1281 1285 https://doi.org/10.1557/jmr.2007.0159 2024-04-27 12:08:11 +0900 Paper 2007 7 K Togano, H Fujii, T Takeuchi, H Kumakura 加工性のあるMg-Li合金を用いた複合加工法によるMgB2線材の作製 Superconductor Science and Technology 20 3 239 243 https://doi.org/10.1088/0953-2048/20/3/022 2024-04-27 12:08:11 +0900 Paper 2007 8 Kiyoshi Ozawa, Fumio Iso, Yasuhiro Nakao, Zhenxiang Cheng, Hiroki Fujii, Masashi Hase, Hitoshi Yamaguchi Preparation and characterization of Ag-magadiite nanocomposites Journal of the European Ceramic Society 27 7 2665 2669 https://doi.org/10.1016/j.jeurceramsoc.2006.12.002 2024-04-27 12:08:11 +0900 Paper 2006 1 NAKANE, Takayuki, NAKA, Takashi, MOCHIKU, Takashi, Kito Hijiri, S. Harjo, Ishigaki Toru, T. Kamiyama, TAKEYA, Hiroyuki, FUJII, Hiroki, T. Wada, MATSUSHITA, Akiyuki, KUMAKURA, Hiroaki, TAKANO, Yoshihiko Origin of the difference between the high and low-Tc phases in the yttrium sesquicarbide system SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 7 s1 S99 S103 2024-04-27 12:08:11 +0900 Paper 2006 2 MOCHIKU, Takashi, 畑慶明, 岩瀬謙二, 米村雅雄, Stefanus Harjo, 星川晃範, 及川健一, 石垣徹, 神山崇, FUJII, Hiroki, IZUMI, Fujio, 門脇和男, HIRATA, Kazuto Fe2Sr2YCu2O6+δ超伝導体の構造相転移 PHYSICA B-CONDENSED MATTER 561 563 2024-04-27 12:08:11 +0900 Paper 2006 3 MOCHIKU, Takashi, TAKEYA, Hiroyuki, Tuerxun Wuernisha, Kazuhiro Mori, Toru Ishigaki, Takashi Kamiyama, FUJII, Hiroki, HIRATA, Kazuto 粉末中性子回折による超伝導Li2Pd3B系の構造的研究 PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 57 60 2024-04-27 12:08:11 +0900 Paper 2006 4 NAKANE, Takayuki, KITAGUCHI, Hitoshi, FUJII, Hiroki, KUMAKURA, Hiroaki PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 784 787 2024-04-27 12:08:11 +0900 Paper 2006 5 H Fujii 三元系金属間化合物La3Ni4Si4、La3Ni4Ge4、La3Pd4Si4の構造と超伝導 Journal of Physics: Condensed Matter 18 34 8037 8047 https://doi.org/10.1088/0953-8984/18/34/015 2024-04-27 12:08:11 +0900 Paper 2006 6 K Togano, T Nakane, H Fujii, H Takeya, H Kumakura 界面拡散プロセスを利用したMgB2線材作製へのアプローチ Superconductor Science and Technology 19 6 L17 L20 https://doi.org/10.1088/0953-2048/19/6/l01 2024-04-27 12:08:11 +0900 Paper 2006 7 H Fujii, T Nakane, H Kumakura, H Yamaguchi Bi-2212/Agテープの臨界電流密度と粒間結合に及ぼす酸素分圧と冷却速度の効果 Superconductor Science and Technology 19 2 233 236 https://doi.org/10.1088/0953-2048/19/2/014 2024-04-27 12:08:11 +0900 Paper 2006 8 Kiyoshi Ozawa, Lianzhou Wang, Hiroki Fujii, Mika Eguchi, Masashi Hase, Hitoshi Yamaguchi Journal of The Electrochemical Society 153 1 A117 https://doi.org/10.1149/1.2135220 2024-04-27 12:08:11 +0900 Paper 2005 1 H. Fujii, T. Mochiku, H. Takeya, A. Sato ゲルマニウム化合物La3Pd4Ge4の超伝導 Physical Review B 72 21 https://doi.org/10.1103/physrevb.72.214520 2024-04-27 12:08:11 +0900 Paper 2005 2 TAKEYA, Hiroyuki, YAMADA, Katsura, YAMAURA, Kazunari, MOCHIKU, Takashi, FUJII, Hiroki, FURUBAYASHI, Takao, HIRATA, Kazuto, 戸叶一正 PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 411 415 2024-04-27 12:08:11 +0900 Paper 2005 3 T Nakane, C H Jiang, T Mochiku, H Fujii, T Kuroda, H Kumakura Superconductor Science and Technology 18 10 1337 1341 https://doi.org/10.1088/0953-2048/18/10/015 2024-04-27 12:08:11 +0900 Paper 2005 4 H Fujii, K Ozawa, T Nakane, H Yamaguchi 金属－キレート分解法によるYBa2Cu3Oz微粒子の作製と評価 Superconductor Science and Technology 18 9 1163 1167 https://doi.org/10.1088/0953-2048/18/9/003 2024-04-27 12:08:11 +0900 Paper 2005 5 NAKANE, Takayuki, FUJII, Hiroki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 1238 1243 2024-04-27 12:08:11 +0900 Paper 2005 6 Kiyoshi Ozawa, Masashi Hase, Hiroki Fujii, Mika Eguchi, Hitoshi Yamaguchi, Yoshio Sakka Electrochimica Acta 50 16-17 3205 3209 https://doi.org/10.1016/j.electacta.2004.11.051 2024-04-27 12:08:11 +0900 Paper 2005 7 T Nakane, H Takeya, H Fujii, H Kumakura Superconductor Science and Technology 18 4 521 525 https://doi.org/10.1088/0953-2048/18/4/023 2024-04-27 12:08:11 +0900 Paper 2004 1 H. Fujii, Y. Mihara, T. Mochiku, Y. Hata, K. Kadowaki Physica C: Superconductivity 415 3 85 93 https://doi.org/10.1016/j.physc.2004.07.020 2024-04-27 12:08:11 +0900 Paper 2004 2 H Fujii, V Garnier, E Giannini, R Flükiger (Bi,Pb)-2223テープの組織と超伝導特性に及ぼすホット一軸プレスの効果 Superconductor Science and Technology 17 2 263 268 https://doi.org/10.1088/0953-2048/17/2/005 2024-04-27 12:08:11 +0900