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OGAWA, Daisuke

OGAWA, Daisuke (小川 大介) 0000-0002-4373-6435

Address
305-0047 1-2-1 Sengen Tsukuba Ibaraki JAPAN [Access]

[Research papers] | [Books] | [Proceedings] | [Presentations] | [Misc] | [Published patent applications]

Research papers TSV

2023
  1. S. Kobayashi, D. Ogawa, X.D. Xu, Y.K. Takahashi, A. Martin-Cid, K. Ishigami, Y. Kotani, M. Suzuki, T. Yoshioka, H. Tsuchiura, H. Sepehri-Amin, T. Ohkubo, K. Hono, S. Hirosawa, T. Nakamura. Multimodal analysis of Zr substitution effects on magnetic and crystallographic properties in (Sm1−Zr )(Fe0.8Co0.2)12 compounds with ThMn12 structure. Acta Materialia. 242 (2023) 118454 10.1016/j.actamat.2022.118454
2022
  1. D. Ogawa, T. Fukazawa, S. Li, T. Ueno, S. Sakai, T. Mitsui, T. Miyake, S. Okamoto, S. Hirosawa, Y.K. Takahashi. Temperature dependence of site-resolved Fe magnetic moments in ThMn12-type Sm(Fe1−Co )12 compounds studied via synchrotron Mössbauer spectroscopy. Journal of Magnetism and Magnetic Materials. 552 (2022) 169188 10.1016/j.jmmm.2022.169188
  2. P. Tozman, T. Fukazawa, D. Ogawa, H. Sepehri-Amin, A. Bolyachkin, T. Miyake, S. Hirosawa, K. Hono, Y.K. Takahashi. Peculiar behavior of V on the Curie temperature and anisotropy field of SmFe12-xVx compounds. Acta Materialia. 232 (2022) 117928 10.1016/j.actamat.2022.117928 Open Access
2021
  1. 小川 大介, 平山悠介, 高橋 有紀子, 嶋敏之. 新規ThMn12系希土類磁石の現状と展望. Magnetics Japan. (2021) 51-59
  2. A. Makurenkova, D. Ogawa, P. Tozman, S. Okamoto, S. Nikitin, S. Hirosawa, K. Hono, Y.K. Takahashi. Intrinsic hard magnetic properties of Sm(Fe,Co)12−xTix compound with ThMn12 structure. Journal of Alloys and Compounds. 861 (2021) 158477 10.1016/j.jallcom.2020.158477
2020
  1. H. Sepehri-Amin, Y. Tamazawa, M. Kambayashi, G. Saito, Y.K. Takahashi, D. Ogawa, T. Ohkubo, S. Hirosawa, M. Doi, T. Shima, K. Hono. Achievement of high coercivity in Sm(Fe0.8Co0.2)12 anisotropic magnetic thin film by boron doping. Acta Materialia. 194 (2020) 337-342 10.1016/j.actamat.2020.05.026 Open Access
  2. D. Ogawa, T. Yoshioka, X.D. Xu, Y.K. Takahashi, H. Tsuchiura, T. Ohkubo, S. Hirosawa, K. Hono. Magnetic anisotropy constants of ThMn12-type Sm(Fe1–Co )12 compounds and their temperature dependence. Journal of Magnetism and Magnetic Materials. 497 (2020) 165965 10.1016/j.jmmm.2019.165965
2019
  1. P. Tozman, Y.K. Takahashi, H. Sepehri-Amin, D. Ogawa, S. Hirosawa, K. Hono. The effect of Zr substitution on saturation magnetization in (Sm1-xZrx)(Fe0.8Co0.2)12 compound with the ThMn12 structure. Acta Materialia. 178 (2019) 114-121 10.1016/j.actamat.2019.08.003
  2. D. Ogawa, X.D. Xu, Y.K. Takahashi, T. Ohkubo, S. Hirosawa, K. Hono. Emergence of coercivity in Sm(Fe0.8Co0.2)12 thin films via eutectic alloy grain boundary infiltration. Scripta Materialia. 164 (2019) 140-144 10.1016/j.scriptamat.2019.02.001
2018
  1. R. Mandal, D. Ogawa, Y. Tamazawa, K. Ishioka, T. Shima, T. Kato, S. Iwata, Y.K. Takahashi, S. Hirosawa, K. Hono. Time domain magnetization dynamics study to estimate interlayer exchange coupling constant in Nd-Fe-B/Ni80Fe20 films. Journal of Magnetism and Magnetic Materials. 468 (2018) 273-278 10.1016/j.jmmm.2018.08.010

Books TSV

Proceedings TSV

Presentations TSV

2022
  1. TOZMAN KARANIKOLAS, Pelin, FUKAZAWA Taro, OGAWA, Daisuke, SEPEHRI AMIN, Hossein, BOLYACHKIN, Anton, MIYAKE Takahashi, HIROSAWA, Satoshi, HONO, Kazuhiro, TAKAHASHI, Yukiko. The Curie temperature enhancement and anisotropy preservation in SmFe12-xVx compounds by V substitution. 日本金属学会 2022年春期第170回講演大会. 2022
2021
  1. TOZMAN KARANIKOLAS, Pelin, Taro Fukazawa, OGAWA, Daisuke, SEPEHRI AMIN, Hossein, BOLYACHKIN, Anton, Takeshi Miyake, HIROSAWA, Satoshi, HONO, Kazuhiro, TAKAHASHI, Yukiko. Understanding the Effect of V on the Intrinsic Magnetic Properties of Sm(Fe,V)12 for Permanent Magnet Applications. 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022) https://icmfs2022.jp/. 2021 Invited
2020
  1. 高橋 有紀子, 小川 大介, セペリ アミン ホセイン, 嶋敏之, 大久保 忠勝, 廣澤 哲, 宝野 和博. Prospect of 1-12 based permanent magnets ~ Demonstration of high coercivity in thin films and current status of 1-12 bulk magnet~. 第44回　日本磁気学会学術講演会. 2020 Invited
  2. SEPEHRI AMIN, Hossein, Y. Tamazawa, M. Kambayashi, G. Saito, TAKAHASHI, Yukiko, OGAWA, Daisuke, OHKUBO, Tadakatsu, HIROSAWA, Satoshi, M. Doi, T. Shima, HONO, Kazuhiro. Recent advances in SmFe12-based hard magnetic materials. The 2020 Magnetism and Magnetic Materials Conference (MMM2020). 2020 Invited
2019
  1. TOZMAN KARANIKOLAS, Pelin, SEPEHRI AMIN, Hossein, TAKAHASHI, Yukiko, OGAWA, Daisuke, HIROSAWA, Satoshi, HONO, Kazuhiro. The Effect of Zr in Progress toward the Development of High-Performance SmFe12-based Magnet. 64th Annual Conference on Magnetism and Magnetic Materials (2019 MMM). 2019
  2. OGAWA, Daisuke, 李 松田, 吉岡 匠哉, 上野 哲郎, 境 誠司, 三井 隆也, TAKAHASHI, Yukiko, 土浦 宏紀, HIROSAWA, Satoshi, HONO, Kazuhiro. Magnetic anisotropy constants and magnetic moments of Fe in ThMn12-type Sm(Fe1-xCox)12 compounds. 第４３回日本磁気学会学術講演会. 2019
  3. TAKAHASHI, Yukiko, OGAWA, Daisuke, HIROSAWA, Satoshi, HONO, Kazuhiro. Intrinsic and extrinsic properties of new permanent magnet Sm(Fe0.8Co0.2)12 compound with ThMn12 structure. MML2019. 2019 Invited
2018
  1. トズマン カラニコラス ペリン, 高橋 有紀子, セペリ アミン ホセイン, 小川 大介, 廣澤 哲, 宝野 和博. The effects of Zr on intrinsic properties of (Sm1-xZrx)(Fe0.8Co0.2)12 compound with ThMn12 structure. 2018年日本金属学会秋期講演大会. 2018
  2. 小川 大介, 徐 先東, 高橋 有紀子, 大久保 忠勝, 廣澤 哲, 宝野 和博. 非強磁性元素拡散したThMn12型Sm(Fe0.8Co0.2)12異方性多結晶薄膜の構造と磁気特性. 日本金属学会. 2018
  3. OGAWA, Daisuke, TAKAHASHI, Yukiko, HIROSAWA, Satoshi, HONO, Kazuhiro. Microstructure and magnetic properties of highly textured Sm(Fe0.8Co0.2)12 thin films with ThMn12 structure. REPM 2018. 2018
  4. OGAWA, Daisuke, HIROSAWA, Satoshi, TAKAHASHI, Yukiko, HONO, Kazuhiro. Microstructure and magnetic properties of anisotropic polycrystalline Sm(Fe0.8Co0.2)12 thin films with ThMn12 structure. INTERMAG 2018. 2018
  5. マンダル ルマ, 小川 大介, Tamazawa Yukiya, 石岡 邦江, Shima Toshiyuki, Kato Takeshi, Iwata Satoshi, 高橋 有紀子, 廣澤 哲, 宝野 和博. Interlayer Exchange Coupling Constant in Nd-Fe-B/Ni80Fe20 Films by All-Optical Pump-Probe Technique. A部門　マグネティックス研究会. 2018

Misc TSV

Published patent applications TSV

  1. 希土類化合物及びこれを用いた磁気記録媒体並びにこれらの製造方法 (2021)
  2. 磁石、膜、積層体、モータ、発電機、及び、自動車 (2021)
  3. 希土類磁石、膜、積層体、希土類磁石の製造方法、モータ、発電機、及び、自動車。 (2020)
  4. ＳｍＺｒＦｅＣｏ磁性化合物およびその製造方法 (2020)

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