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SUTO, Hirofumi

SUTO, Hirofumi (首藤 浩文) 0000-0003-4387-5862

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

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

Research papers TSV

2024
  1. Tomoya Nakatani, Prabhanjan D. Kulkarni, Hirofumi Suto, Keisuke Masuda, Hitoshi Iwasaki, Yuya Sakuraba. Perspective on nanoscale magnetic sensors using giant anomalous Hall effect in topological magnetic materials for read head application in magnetic recording. Applied Physics Letters. 124 [7] (2024) 070501 10.1063/5.0191974 Open Access
2023
  1. Vineet Barwal, Hirofumi Suto, Tomohiro Taniguchi, Yuya Sakuraba. Detailed and high-throughput measurement of composition dependence of magnetoresistance and spin–transfer torque using a composition-gradient film: application to Co x Fe 1- x (0 ≤ x ≤ 1) system. Science and Technology of Advanced Materials: Methods. 3 [1] (2023) 2286944 10.1080/27660400.2023.2286944 Open Access
  2. Tomoya Nakatani, Hirofumi Suto, Prabhanjan D. Kulkarni, Hitoshi Iwasaki, Yuya Sakuraba. Improvement of magnetic field detectivity in electrical 1/f noise-dominated tunnel magnetoresistive sensors by AC magnetic field modulation technique. Journal of Applied Physics. 134 [21] (2023) 213904 10.1063/5.0180812 Open Access
  3. Hirofumi Suto, Tomoya Nakatani, Nagarjuna Asam, Hitoshi Iwasaki, Yuya Sakuraba. Evaluation of spin-transfer-torque efficiency using magnetization reversal against a magnetic field: comparison of FeCr with negative spin polarization and NiFe. Applied Physics Express. 16 [1] (2023) 013003 10.35848/1882-0786/acb310
2022
  1. Zixi Chen, Yuya Sakuraba, Yoshio Miura, Zehao Li, Taisuke Sasaki, Hirofumi Suto, Varun K. Kushwaha, Tomoya Nakatani, Seiji Mitani, Kazuhiro Hono. Phase stability and half-metallic character of off-stoichiometric Co2FeGa0.5Ge0.5 Heusler alloys. Journal of Applied Physics. 132 [18] (2022) 183902 10.1063/5.0109802
  2. Tomoya Nakatani, Hirofumi Suto, Prabhanjan D. Kulkarni, Hitoshi Iwasaki, Yuya Sakuraba. Tunnel magnetoresistance sensors with symmetric resistance-field response and noise properties under AC magnetic field modulation. Applied Physics Letters. 121 [19] (2022) 192406 10.1063/5.0119677
  3. Hirofumi Suto, Tomoya Nakatani, Yohei Kota, Nagarjuna Asam, Hitoshi Iwasaki, Kenta Amemiya, Takaya Mitsui, Seiji Sakai, Songtian Li, Yuya Sakuraba. Study on FeCr thin film for a spintronic material with negative spin polarization. Journal of Magnetism and Magnetic Materials. 557 (2022) 169474 10.1016/j.jmmm.2022.169474
2021
  1. Nagarjuna Asam, Hirofumi Suto, Shingo Tamaru, Hossein Sepehri-Amin, Anton Bolyachkin, Tomoya Nakatani, Weinan Zhou, Hitoshi Kubota, Yuya Sakuraba. Analysis method of a spin-torque oscillator using dc resistance change during injection locking to an external microwave magnetic field. Applied Physics Letters. 119 [14] (2021) 142405 10.1063/5.0058847
  2. Hirofumi Suto, Hossein Sepehri-Amin, Nagarjuna Asam, Weinan Zhou, Anton Bolyachkin, Masayuki Takagishi, Naoyuki Narita, Shingo Tamaru, Tomoya Nakatani, Yuya Sakuraba. Analysis of an all-in-plane spin-torque oscillator using injection locking to an external microwave magnetic field. Applied Physics Express. 14 [5] (2021) 053001 10.35848/1882-0786/abf667

Books TSV

Proceedings TSV

Presentations TSV

2023
  1. NAKATANI, Tomoya, SUTO, Hirofumi, KULKARNI, Prabhanjan Dilip, IWASAKI, Hitoshi, SAKURABA, Yuya. Tunnel magnetoresistance sensors with even-function resistance-magnetic field response. SPIE Spintronics XVI. 2023 Invited
  2. NAKATANI, Tomoya, KULKARNI, Prabhanjan Dilip, MANIKKETH, Murali Krishnan, IWASAKI, Hitoshi, SUTO, Hirofumi, SAKURABA, Yuya. Read Sensors Using Anomalous Hall Effect. The 34th Magnetic Recording Conference . 2023 Invited
  3. 首藤 浩文, 中谷 友也, アサム ナガルシュナ, 岩崎 仁志, 桜庭 裕弥, 小田洋平, 雨宮健太, 三井隆也, 境誠司, Li Songtian. 負のスピン分極を有するFeCr合金のスピントロニクス応用とメスバウアー分光法による解析. 第22回 メスバウアー分光研究会 シンポジウム. 2023
  4. NAKATANI, Tomoya, SUTO, Hirofumi, KULKARNI, Prabhanjan Dilip, IWASAKI, Hitoshi, SAKURABA, Yuya. AC magnetic field modulation on tunnel magnetoresistance sensors with even-function resistance-field response. Intermag 2023. 2023
  5. SUTO, Hirofumi, BARWAL, Vineet, LI, Zehao, MASUDA, Keisuke, SASAKI, Taisuke, SAKURABA, Yuya. Negative spin polarization of Mn2VGa Heusler alloy thin film studied in current-perpendicular-to-plane giant magnetoresistance devices. Intermag 2023. 2023
2022
  1. LI, Zehao, SUTO, Hirofumi, BARWAL, Vineet, MASUDA, Keisuke, SASAKI, Taisuke, 田尻 寛男, Kumara Rosantha, 小金澤 智之, 雨宮 健太, SAKURABA, Yuya, HONO, Kazuhiro. Microstructure and transport properties in MnVGa Heusler alloy thin films. 日本金属学会 2022年秋期 第171回講演大会. 2022
  2. NAKATANI, Tomoya, KULKARNI, Prabhanjan Dilip, IWASAKI, Hitoshi, SUTO, Hirofumi, SAKURABA, Yuya. Magnetic recording read sensors using anomalous Hall effect. 第83回応用物理学会秋季学術講演会. 2022
  3. SUTO, Hirofumi, NAKATANI, Tomoya, ASAM, Nagarjuna, IWASAKI, Hitoshi, SAKURABA, Yuya. Evaluation of spin-transfer-torque efficiency of FeCr with negative spin polarization using magnetization reversal against a magnetic field. 第83回応用物理学会秋季学術講演会 https://meeting.jsap.or.jp/. 2022
  4. 中谷 友也, クルカルニ プラバンジャン ディリプ, 岩崎 仁志, 首藤 浩文, 桜庭 裕弥. 異常ホール効果を用いたHDD用リードセンサの検討. 第46回日本磁気学会学術講演会 https://www.magnetics.jp/kouenkai/2022/. 2022
  5. SUTO, Hirofumi, ASAM, Nagarjuna, 田丸 慎吾, SEPEHRI AMIN, Hossein, BOLYACHKIN, Anton, ZHOU, Weinan, NAKATANI, Tomoya, 久保田 均, SAKURABA, Yuya. Analysis of a spin-torque oscillator using injection locking to an external microwave field. 24th International Colloquium on Magnetic Films and Surfaces (ICMFS2022) https://icmfs2022.jp/. 2022
2021
  1. 首藤 浩文, アサム ナガルシュナ, 田丸　慎吾, セペリ アミン ホセイン, ボリャーチキン アントーン, 中谷 友也, 周 偉男, 久保田 均, 桜庭 裕弥. マイクロ波磁界印加によるinjection lockingを利用した スピントルク発振素子の磁化ダイナミクス解析. 磁気記録・情報ストレージ研究会（MRIS） https://www.ieice.org/ken/program/index.php?tgs_regid=6347033ba7e2cf709429158c719c1c41328bf92a66c8a0cac8b7b5c1a9b99ca8&tgid=IEICE-MRIS. 2021
  2. 首藤 浩文, アサム ナガルシュナ, 田丸　慎吾, セペリ アミン ホセイン, ボリャーチキン アントーン, 周 偉男, 中谷 友也, 久保田 均, 桜庭 裕弥. マイクロ波磁界印加によるinjection lockingを利用したスピントルク発振素子の磁化ダイナミクス解析. 第45回日本磁気学会学術講演会. 2021
  3. 首藤 浩文, アサム ナガルシュナ, 田丸 慎吾, セペリ アミン 那仁, ボリャーチキン アントーン, 中谷 友也, 周 偉男, 久保田 均, 桜庭 裕弥. Analysis of a spin-torque oscillator using injection locking to an external microwave field. The 32nd Magnetic Recording Conference (TMRC2021). 2021 Invited
  4. アサム ナガルシュナ, 首藤 浩文, Tamaru Shingo, セペリ アミン ホセイン, 中谷 友也, 周 偉男, Hitoshi Kubota, 桜庭 裕弥. Characterizing the oscillation frequency of a spin-torque oscillator (STO) by measuring the change of dc resistance upon injection locking to an external RF magnetic field. INTERMAG2021　/　https://intermag.org . 2021

Misc TSV

Published patent applications TSV

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