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Ohshima, Ryo

Graduate School of Engineering, Division of Electronic Science and Engineering Assistant Professor

Ohshima, Ryo
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    Last Updated :2022/09/30

    Basic Information

    Faculty

    • 工学部

    Academic Degree

    • Master of Engineering(Osaka University)
    • Ph.D in Engineering(Kyoto University)

    ID,URL

    researchmap URL

    list
      Last Updated :2022/09/30

      Research

      Research Topics, Overview of the research

      • Research Topics

        Spintronics in two-dimensional materials and oxide materials
      • Overview of the research

        Spintronics is the research field to find a new physics with "spin current", the flow of spin angular momentum, and investigate a path way to the fundamental material physics or engineering. I am interested in the spin current properties in two-dimensional (2D) systems, in particular, oxide surfaces/interfaces. My research theme is studying the spin transport properties in 2D materials and controlling it by external fields.

      Research Interests

      • Spintronics

      Research Areas

      • Nanotechnology/Materials, Applied materials

      Papers

      • Full calculation of inter-conversion between charge, spin, and heat current using a common partial differential equation platform
        Ei Shigematsu; Eiiti Tamura; Ryo Ohshima; Yuichiro Ando; Masashi Shiraishi
        Journal of Applied Physics, 28 Jun. 2022
      • Efficient room-temperature magnetization direction detection by means of the enhanced anomalous Nernst effect in a Weyl ferromagnet
        L. Leiva; S. Granville; Y. Zhang; S. Dushenko; E. Shigematsu; R. Ohshima; Y. Ando; M. Shiraishi
        Physical Review Materials, 15 Jun. 2022
      • 21pBC-11 Observation of the spin transport via itinerant d-orbital electrons
        Ohshima R.; Ando Y.; Shinjo T.; Matsuzaki K.; Susaki T.; Weiler Mathias; Huebl Hans; Goenennwein Sebastian T. B.; Shiraishi M.
        Meeting Abstracts of the Physical Society of Japan, 2016
      • Current-induced out-of-plane torques in a single permalloy layer with lateral structural asymmetry
        Motomi Aoki; Ei Shigematsu; Ryo Ohshima; Teruya Shinjo; Masashi Shiraishi; Yuichiro Ando
        Physical Review B, 07 Apr. 2022
      • Influence of adjacent metal films on magnon propagation in Y3Fe5O12
        Sotaro Mae; Ryo Ohshima; Ei Shigematsu; Yuichiro Ando; Teruya Shinjo; Masashi Shiraishi
        Physical Review B, 14 Mar. 2022
      • Electrical transport properties of atomically thin WSe2 using perpendicular magnetic anisotropy metal contacts
        S. Gupta; R. Ohshima; Y. Ando; T. Endo; Y. Miyata; M. Shiraishi
        Applied Physics Letters, 03 Jan. 2022
      • Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
        Ryo Ohshima; Yuto Kohsaka; Yuichiro Ando; Teruya Shinjo; Masashi Shiraishi
        Scientific Reports, Dec. 2021
      • Coexistence of low-frequency spin-torque ferromagnetic resonance and unidirectional spin Hall magnetoresistance
        Motomi Aoki; Ei Shigematsu; Ryo Ohshima; Teruya Shinjo; Masashi Shiraishi; Yuichiro Ando
        Physical Review B, 01 Sep. 2021
      • Observation of a superconducting state of a topological superconductor candidate, FeTe0.6Se0.4, equipping ferromagnetic electrodes with perpendicular magnetic anisotropy
        Kosuke Ohnishi; Sachin Gupta; Shigeru Kasahara; Yuichi Kasahara; Yuji Matsuda; Ei Shigematsu; Ryo Ohshima; Yuichiro Ando; Masashi Shiraishi
        Applied Physics Express, 01 Sep. 2021
      • Investigation of the thermal tolerance of silicon-based lateral spin valves
        N. Yamashita; S. Lee; R. Ohshima; E. Shigematsu; H. Koike; Y. Suzuki; S. Miwa; M. Goto; Y. Ando; M. Shiraishi
        Scientific Reports, Dec. 2021
      • Synthetic Rashba spin–orbit system using a silicon metal-oxide semiconductor
        Soobeom Lee; Hayato Koike; Minori Goto; Shinji Miwa; Yoshishige Suzuki; Naoto Yamashita; Ryo Ohshima; Ei Shigematsu; Yuichiro Ando; Masashi Shiraishi
        Nature Materials, 03 Jun. 2021
      • Spin to charge conversion in Si/Cu/ferromagnet systems investigated by ac inductive measurements
        Ei Shigematsu; Lukas Liensberger; Mathias Weiler; Ryo Ohshima; Yuichiro Ando; Teruya Shinjo; Hans Huebl; Masashi Shiraishi
        Physical Review B, 19 Mar. 2021, Peer-reviewed
      • Approaching barrier-free contacts to monolayer MoS2 employing [Co/Pt] multilayer electrodes
        S. Gupta; F. Rortais; R. Ohshima; Y. Ando; T. Endo; Y. Miyata; M. Shiraishi
        NPG ASIA MATERIALS, Feb. 2021, Peer-reviewed
      • Enhancement of low-frequency spin-orbit-torque ferromagnetic resonance signals by frequency tuning observed in Pt/Py, Pt/Co, and Pt/Fe bilayers
        Motomi Aoki; Ei Shigematsu; Masayuki Matsushima; Ryo Ohshima; Syuta Honda; Teruya Shinjo; Masashi Shiraishi; Yuichiro Ando
        AIP Advances, 01 Feb. 2021, Peer-reviewed
      • Giant spin Hall angle in the Hensler alloy Weyl ferromagnet Co2MnGa
        L. Leiva; S. Granville; Y. Zhang; S. Dushenko; E. Shigematsu; T. Shinjo; R. Ohshima; Y. Ando; M. Shiraishi
        PHYSICAL REVIEW B, Jan. 2021, Peer-reviewed
      • In-plane spin-orbit torque magnetization switching and its detection using the spin rectification effect at subgigahertz frequencies
        Motomi Aoki; Ei Shigematsu; Masayuki Matsushima; Ryo Ohshima; Syuta Honda; Teruya Shinjo; Masashi Shiraishi; Yuichiro Ando
        Physical Review B, 30 Nov. 2020, Peer-reviewed
      • Detection of ferromagnetic resonance from 1 nm-thick Co
        Shugo Yoshii; Ryo Ohshima; Yuichiro Ando; Teruya Shinjo; Masashi Shiraishi
        SCIENTIFIC REPORTS, Sep. 2020, Peer-reviewed
      • Enhancement of spin signals by thermal annealing in silicon-based lateral spin valves
        N. Yamashita; S. Lee; R. Ohshima; E. Shigematsu; H. Koike; Y. Suzuki; S. Miwa; M. Goto; Y. Ando; M. Shiraishi
        AIP Advances, 01 Sep. 2020, Peer-reviewed
      • Modulation of spin conversion in a 1.5 nm-thick Pd film by ionic gating
        Shin-Ichiro Yoshitake; Ryo Ohshima; Teruya Shinjo; Yuichiro Ando; Masashi Shiraishi
        Applied Physics Letters, 31 Aug. 2020, Peer-reviewed
      • Over 1% magnetoresistance ratio at room temperature in non-degenerate silicon-based lateral spin valves
        Hayato Koike; Soobeom Lee; Ryo Ohshima; Ei Shigematsu; Minori Goto; Shinji Miwa; Yoshishige Suzuki; Tomoyuki Sasaki; Yuichiro Ando; Masashi Shiraishi
        Applied Physics Express, 01 Aug. 2020, Peer-reviewed
      • Sizable spin-transfer torque in the Bi/Ni80Fe20 bilayer film
        Masayuki Matsushima; Shinji Miwa; Shoya Sakamoto; Teruya Shinjo; Ryo Ohshima; Yuichiro Ando; Yuki Fuseya; Masashi Shiraishi
        Applied Physics Letters, 27 Jul. 2020, Peer-reviewed
      • Spin transport in a lateral spin valve with a suspended Cu channel
        Kenjiro Matsuki; Ryo Ohshima; Livio Leiva; Yuichiro Ando; Teruya Shinjo; Toshiyuki Tsuchiya; Masashi Shiraishi
        SCIENTIFIC REPORTS, Jul. 2020, Peer-reviewed
      • Gate-Tunable Spin xor Operation in a Silicon-Based Device at Room Temperature
        Ryoma Ishihara; Yuichiro Ando; Soobeom Lee; Ryo Ohshima; Minori Goto; Shinji Miwa; Yoshishige Suzuki; Hayato Koike; Masashi Shiraishi
        Physical Review Applied, 06 Apr. 2020, Peer-reviewed
      • Investigation of gating effect in Si spin MOSFET
        Soobeom Lee; Fabien Rortais; Ryo Ohshima; Yuichiro Ando; Minori Goto; Shinji Miwa; Yoshishige Suzuki; Hayato Koike; Masashi Shiraishi
        Applied Physics Letters, 13 Jan. 2020, Peer-reviewed
      • Spin transport in n-type 3C-SiC observed in a lateral spin-pumping device
        Ei Shigematsu; Ryo Ohshima; Yuichiro Ando; Teruya Shinjo; Tsunenobu Kimoto; Masashi Shiraishi
        Solid State Communications, 2020, Peer-reviewed
      • Stability of spin XOR gate operation in silicon based lateral spin device with large variations in spin transport parameters
        Ryoma Ishihara; Soobeom Lee; Yuichiro Ando; Ryo Ohshima; Minori Goto; Shinji Miwa; Yoshishige Suzuki; Hayato Koike; Masashi Shiraishi
        AIP ADVANCES, Dec. 2019, Peer-reviewed
      • Monolayer MoS2 field effect transistor with low Schottky barrier height with ferromagnetic metal contacts
        S. Gupta; F. Rortais; R. Ohshima; Y. Ando; T. Endo; Y Miyata; M. Shiraishi
        Scientific Reports, Nov. 2019, Peer-reviewed
      • Quantitative and systematic analysis of bias dependence of spin accumulation voltage in a nondegenerate Si-based spin valve
        Soobeom Lee; Fabien Rortais; Ryo Ohshima; Yuichiro Ando; Shinji Miwa; Yoshishige Suzuki; Hayato Koike; Masashi Shiraishi
        PHYSICAL REVIEW B, Feb. 2019, Peer-reviewed
      • Spin-orbit coupling induced by bismuth doping in silicon thin films
        F. Rortais; S. Lee; R. Ohshima; S. Dushenko; Y. Ando; M. Shiraishi
        APPLIED PHYSICS LETTERS, Sep. 2018, Peer-reviewed
      • Note: Derivative divide, a method for the analysis of broadband ferromagnetic resonance in the frequency domain
        Hannes Maier-Flaig; Sebastian T; B. Goennenwein; Ryo Ohshima; Masashi Shiraishi; Rudolf Gross; Hans Huebl; Mathias Weiler
        REVIEW OF SCIENTIFIC INSTRUMENTS, Jul. 2018, Peer-reviewed
      • LaAlO₃/SrTiO₃界面で誘起される2次元電子系を用いた室温スピン輸送
        大島 諒; 安藤 裕一郎; 白石 誠司
        固体物理, Jan. 2018, Peer-reviewed
      • Strong evidence for d-electron spin transport at room temperature at a LaAlO3/SrTiO3 interface
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Mathias Weiler; Stefan Klingler; Hans Huebl; Eiji Shikoh; Teruya Shinjo; Sebastian T. B. Goennenwein; Masashi Shiraishi
        NATURE MATERIALS, Jun. 2017, Peer-reviewed
      • Spin injection into silicon detected by broadband ferromagnetic resonance spectroscopy
        Ryo Ohshima; Stefan Klingler; Sergey Dushenko; Yuichiro Ando; Mathias Weiler; Hans Huebl; Teruya Shinjo; Sebastian T. B. Goennenwein; Masashi Shiraishi
        APPLIED PHYSICS LETTERS, May 2017, Peer-reviewed
      • Quantitative investigation of the inverse Rashba-Edelstein effect in Bi/Ag and Ag/Bi on YIG
        Masasyuki Matsushima; Yuichiro Ando; Sergey Dushenko; Ryo Ohshima; Ryohei Kumamoto; Teruya Shinjo; Masashi Shiraishi
        APPLIED PHYSICS LETTERS, Feb. 2017, Peer-reviewed
      • Transport and spin conversion of multicarriers in semimetal bismuth
        Hiroyuki Emoto; Yuichiro Ando; Gaku Eguchi; Ryo Ohshima; Eiji Shikoh; Yuki Fuseya; Teruya Shinjo; Masashi Shiraishi
        PHYSICAL REVIEW B, May 2016, Peer-reviewed
      • Significant reduction in spin pumping efficiency in a platinum/yttrium iron garnet bilayer at low temperature
        Ei Shigematsu; Yuichiro Ando; Ryo Ohshima; Sergey Dushenko; Yukio Higuchi; Teruya Shinjo; Hans Jurgen von Bardeleben; Masashi Shiraishi
        APPLIED PHYSICS EXPRESS, May 2016, Peer-reviewed
      • Observation of spin injection into Si via broadband ferromagnetic resonance measurement
        Ohshima Ryo; Ando Yuichiro; Weiler Mathias; Klingler Stefan; Huebl Hans; Shinjo Teruya; Goennenwein Sebastian T. B.; Shiraishi Masashi
        Meeting Abstracts of the Physical Society of Japan, 2016
      • Temperature evolution of electromotive force from Pt on yttrium-iron-garnet under ferromagnetic resonance
        R. Ohshima; E. Emoto; T. Shinjo; Y. Ando; M. shiraishi
        J. Appl. Phys., Apr. 2015, Peer-reviewed
      • Observation of spin-charge conversion in chemical-vapor-deposition-grown single-layer graphene
        Ryo Ohshima; Atsushi Sakai; Yuichiro Ando; Teruya Shinjo; Kenji Kawahara; Hiroki Ago; Masashi Shiraishi
        APPLIED PHYSICS LETTERS, Oct. 2014, Peer-reviewed
      • Spin injection into LaAlO_3/SrTiO_3 heterointerfaces
        OHSHIMA Ryo; ANDO Yuichiro; SHINJO Teruya; MATSUZAKI Kosuke; SUSAKI Tomofumi; SHIRAISHI Masashi
        IEICE technical report. Magnetic recording, Jan. 2014
      • LaAlO?/SrTiO?界面へのスピン注入 (磁気記録・情報ストレージ)
        大島 諒; 安藤 裕一郎; 新庄 輝也
        電子情報通信学会技術研究報告 = IEICE technical report : 信学技報, Jan. 2014
      • LaAlO₃/SrTiO₃界面へのスピン注入 (マルチメディアストレージ コンシューマエレクトロニクス)
        大島 諒; 安藤 裕一郎; 新庄 輝也
        映像情報メディア学会技術報告 = ITE technical report, Jan. 2014

      Misc.

      • Room-temperature spin transport through two-dimensional electron gas at a LaAlO3/SrTiO3 interface
        Ryo Ohshima; Yuichiro Ando; Masashi Shiraishi
        Solid State Physics, Feb. 2018, Invited

      Presentations

      • 酸化物ヘテロ構造を用いた室温スピン輸送
        大島 諒
        第79開応用物理学会秋季学術講演会, 19 Sep. 2018, Invited
      • Room temperature spin transport at LaAlO3/SrTiO3 interfaces
        Ryo Ohshima
        Spintronics XI of the SPIE Optics and Photonics conference, 22 Aug. 2018, Invited
      • Observation of room-temperature spin transport at LaAlO3/SrTiO3 interfaces
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Mathias Weiler; Stefan Klingler; Hans Huebl; Eiji Shikoh; Teruya Shinjo; Sebastian T; B. Goennewein; Masashi Shiraishi
        10th international School and Conference on Physics and Applications of Spin Phenomena in Solids, 05 Aug. 2018
      • 酸化物ヘテロ接合を用いたスピン輸送の観測
        大島諒; 安藤裕一郎; 松崎功佑; 須崎友文; Mathias Weiler; Stefan Klingler; Hans Huebl; 仕幸英治; 新庄輝也; Sebastian; T.B. Goennenwein; 白石誠司
        応用物理学会関西支部平成29年度第2回講演会, 17 Nov. 2017
      • Realization of d-electron spin transport in oxide-based two-dimensional electron gas at room temperature
        Ryo Ohshima
        62th Annual Magnetism & Magnetic Materials Conference, 09 Nov. 2017, Invited
      • Observation of the spin transport at a LaAlO3/SrTiO3 interface at room temperature
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Mathias Weiler; Stefan Klingler; Hans Huebl; Eiji Shikoh; Teruya Shinjo; Sebastian T; B. Goennewein; Masashi Shiraishi
        第78回応用物理学会秋季学術講演会, 06 Sep. 2017
      • Observation of the spin transport in a d-electron two-dimensional electron gas at the oxide interface
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Mathias Weiler; Stefan Klingler; Hans Huebl; Eiji Shikoh; Teruya Shinjo; Sebastian T; B. Goennewein; Masashi Shiraishi
        TOP-SPIN 3: Spin and Topological Phenomena in Nanostructures Towards Topological Materials Science, 28 Apr. 2017
      • Spin transport via d-electrons at a LaAlO3/SrTiO3 interface
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Mathias Weiler; Stefan Klingler; Hans Huebl; Eiji Shikoh; Teruya Shinjo; Sebastian T; B. Goennewein; Masashi Shiraishi
        The Spintronics and Core-to-core Workshop 2017, 22 Mar. 2017, Invited
      • Detection of the spin injection into silicon by broadband ferromagnetic resonance spectroscopy
        Ryo Ohshima; Yuichiro Ando; Mathias Weiler; Stefan Klingler; Hans Huebl; Teruya Shinjo; Sebastian T; B. Goennewein; Masashi Shiraishi
        American Physical Society March Meeting, 17 Mar. 2017
      • Realization of d-electron spin transport at a LaAlO3/SrTiO3 interface
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Mathias Weiler; Stefan Klingler; Hans Huebl; Eiji Shikoh; Teruya Shinjo; Sebastian T; B. Goennewein; Masashi Shiraishi
        Nano Spin Conversion Science Annual Report Meeting, 02 Mar. 2017
      • 広帯域を用いた強磁性共鳴によるSiへのスピン注入の観測
        大島諒; 安藤裕一郎; Mathias Weiler; S. Klingler; Hans Huebl; 新庄輝也; Sebastian T; B. Goennenwein; 白石誠司
        日本物理学会2016年秋季大会, 21 Sep. 2016
      • 酸化物界面におけるスピン輸送の観測
        大島諒; 安藤裕一郎; 新庄輝也; 松崎功佑; 須崎友文; Mathias Weiler; Hans Huebl; Sebastian T; B. Goennenwein; 白石誠司
        日本物理学会第71回年次大会, 21 Mar. 2016
      • Spin transport through Oxide Interfaces Induced by Dynamical Method
        Ryo Ohshima; Yuichiro Ando; Kosuke Matsuzaki; Tomofumi Susaki; Teruya Shinjo; Masashi Shiraishi
        13th Joint MMM-Intermag Conference, 13 Jan. 2016
      • 酸化物界面におけるスピン輸送の観測
        大島諒; 安藤裕一郎; 新庄輝也; 松崎功佑; 須崎友文; 白石誠司
        第76回応用物理学会秋季学術講演会, 15 Sep. 2015
      • 伝導性d軌道電子を用いたスピン輸送の実現
        大島諒; 安藤裕一郎; 新庄輝也; 松崎功佑; 須崎友文; 白石誠司
        第39回日本磁気学会学術講演会, 10 Sep. 2015
      • Spin-charge conversion system in CVD-grown single-layer graphene at room temperature
        Ryo Ohshima; Atsushi Sakai; Yuichiro Ando; Teruya Shinjo; Kohei Hamaya; Kenji Kawahara; Hiroki Ago; Masashi Shiraishi
        59th Annual Magnetism & Magnetic Materials Conference, 04 Nov. 2014
      • Detection of Spin-charge Conversion in Single-layer Graphene at Room Temperature
        Ryo Ohshima; Atsushi Sakai; Yuichiro Ando; Teruya Shinjo; Kohei Hamaya; Kenji Kawahara; Hiroki Ago; Masashi Shiraishi
        5th International Meeting on Spin in Organic Semiconductors, 14 Oct. 2014
      • Spin-charge conversion in CVD-grown single-layer graphene at room temperature
        Ryo Ohshima; Atsushi Sakai; Yuichiro Ando; Teruya Shinjo; Kohei Hamaya; Kenji Kawahara; Hiroki Ago; Masashi Shiraishi
        第75回応用物理学会秋季学術講演会, 20 Sep. 2014
      • 単層グラフェンを用いたスピン流-電流変換の観測とその評価
        大島諒; 酒井敦; 安藤裕一郎; 新庄輝也; 浜屋宏平; 河原憲治; 吾郷浩樹; 白石誠司
        第38回日本磁気学会学術講演会, 02 Sep. 2014

      Awards

      • 08 Aug. 2018
        MDPI, 10th international school and conference on PASPS Best Poster Award (Second)
      • 17 Nov. 2017
        応用物理学会関西支部, 平成29年度第2回講演会ポスター賞(最優秀賞)
      • 07 Mar. 2018
        応用物理学会関西支部, 第6回(平成29年度)関西奨励賞
      • 04 Feb. 2020
        公益財団法人井上科学振興財団, 第36回井上研究奨励賞
      list
        Last Updated :2022/09/30

        Education

        Teaching subject(s)

        • From 01 Apr. 2022, To 31 Mar. 2023
          Fundamental Practice of Electrical & Electronic Engineering
          6119, Fall, Faculty of Engineering, 2
        • From Apr. 2019, To Mar. 2020
          Fundamental Practice of Electrical & Electronic Engineering
          Fall, 工学部
        • From Apr. 2020, To Mar. 2021
          Fundamental Practice of Electrical & Electronic Engineering
          Fall, 工学部
        • From Apr. 2021, To Mar. 2022
          Fundamental Practice of Electrical & Electronic Engineering
          Fall, 工学部

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