論文

• Ronel Christian Roca, Nozomi Nishizawa, Hiro Munekata. Modeling and Optimization of Refracting-Facet Spin-Photodiodes based on Ferromagnetic Metal-Insulator-Semiconductor Tunnel Junctions, SPIN, World Scientific Publishing Co Pte Ltd, Vol. 10, Aug. 2020.
• A. Goschew, R. C. Roca, N. Nishizawa, H. Munekata, A. Delimitis, P. Fumagalli. Spin Injection From EuS/Co Multilayers Into GaAs Detected by Polarized Electroluminescence, IEEE Transactions on Magnetics, IEEE, Vol. 55, No. 7, p. 1400804, Feb. 2019.
• Ronel Christian Roca, Nozomi Nishizawa, Kazuhiro Nishibayashi, Hiro Munekata. A lateral-type spin-photodiode based on Fe/x-AlOx/p-InGaAs junctions with a refracting-facet side window, Journal of Applied Physics, Vol. 123, No. 21, p. 213903, June 2018.  公式リンク  
  
• Nozomi Nishizawa, Masaki Aoyama, Ronel C. Roca, Kazuhiro Nishibayashi, Hiro Munekata. Arbitrary helicity control of circularly polarized light from lateral-type spin-polarized light-emitting diodes at room temperature, Applied Physics Express, Vol. 11, p. 053003, Apr. 2018.  公式リンク  
  
• R. C. Roca, N. Nishizawa, K. Nishibayashi, H. Munekata. Progress in the room temperature operation of GaAs-based lateral-type spin-PD in near-infrared wavelength region, Proceedings of SPIE, Vol. 10357, p. 103571C, Sept. 2017.  公式リンク  
  
• Ronel Christian Roca, Nozomi Nishizawa, Kazuhiro Nishibayashi, Hiro Munekata. Investigation of helicity-dependent photocurrent at room temperature from a Fe/x-AlOx/p-GaAs Schottky junction with oblique surface illumination, Japanese Journal of Applied Physics, Vol. 56, No. 4S, p. 04CN05, Feb. 2017.  公式リンク  
  
• Hiro Munekata, Masaki Aoyama, Ronel Roca, Nozomi Nishizawa. Spin-photonic devices based on crystalline-AlOx / GaAs for emission and detection of circular polarized light, PROCEEDING OF SPIE, Volume 9551, p. 9551120-1～6, Oct. 2015.

国際会議発表 (査読有り)

• N. Nishizawa, S. Shimbo, R. Roca, H. Munekata. Growth of an ultra-thin crystalline AlOx tunnel barrier layer on GaAs-based surfaces for robust spin injection, IUMRS-ICAM 2017 (International Union of Materials Research Societies - The 15th International Conference on Advanced Materials), IUMRS-ICAM 2017 program, Aug. 2017.
• Hiro Munekata, Ronel C. Roca, Kazuhiro Nishibayashi, Nozomi Nishizawa. Progress in the room temperature operation of GaAs-based lateral-type spin-PD in near-infrared wavelength region, SPIE. OPTICS＋PHOTONICS, Aug. 2017.
• R. Ronel, K. Nishibayashi, N. Nishizawa, H. Munekata. Refracting-Facet Spin-Photodiode based on Fe/x-AlOX/p-InGaAs Schottky Junction, The 9th International School and Conference on Spintronics and Quantum Information Technology (Spintech IX), Spintech IX conference program, June 2017.
• R.C.I. Roca, N. Nishizawa, K. Nishibayashi, H. Munekata. Highly Efficient Helicity dependent Photocurrent at Room Temperature Using a Fe/x-AlOx/p-GaAs Schottky Junction, 2016 International Conference on Solid State Devices and Materials, Sept. 2016.
• N. Nishizawa, R. C. Roca, M. Aoyama, K. Nishibayashi, H. Munekata. Semiconductor-based spin-photonic devices for emission and detection of circularly polarized light at room temperature, SPIE. OPTICS＋PHOTONICS, Aug. 2016.
• Hiro Munekata, Masaki Aoyama, Ronel Roca, Nozomi Nishizawa. Spin-photonic devices based on crystalline-AlOx / GaAs for emission and detection of circular polarized light, SPIE. OPTICS＋PHOTONICS, Aug. 2015.

国内会議発表 (査読有り)

• R. C. Roca, N. Nishizawa, H. Munekata. Simulation and Analysis of a Refracting-Facet Spin-Photodiode, The 65th JSAP Spring Meeting, The 65th JSAP Spring Meeting Program, The Japan Society of Applied Physics, Mar. 2018.
• H. Munekata, R.C. Roca, K. Nishibayashi, N. Nishizawa. Mechanism of Pure Circular Polarization Electroluminescence from a GaAs-based DH Spin-LED, The 64th JSAP Spring Meeting, 2017, 予稿集, 公共社団法人 応用物理学会, p. 09-042, Mar. 2017.
• R. C. Roca, N. Nishizawa, K. Nishibayashi, H. Munekata. Simulation of an edged-illuminated refracting-facet spin photodiode, The 64th JSAP Spring Meeting, 2017, 予稿集, 公共社団法人 応用物理学会, p. 09-141, Mar. 2017.
• Ronel Intal Roca, Nozomi Nishizawa, Hiro Munekata. Helicity dependent photocurrent at RT from a Fe/x-AlOx/p-GaAs Schottky junction, 第63回応用物理学会春季学術講演会, 予稿集, p. 08-077, Mar. 2016.
• Ronel Roca, Nozomi Nishizawa, Takashi Matsuda, Hiro Munekata. A phenomenological model for the helicity dependent photocurrent in a ferromagnet – insulator – semiconductor junction, 第62回応用物理学会春季学術講演会, 予稿集, p. 09-133, Mar. 2015.

国内会議発表 (査読なし・不明)

• 西沢望, 西林一彦, R. C. Roca, 宗片比呂夫. 円偏光発光ダイオード素子の開発, 第10回 文部科学省「最先端の光の創成を目指したネットワーク研究拠点プログラム」シンポジウム ーグローバル・リーダーを育む光科学ー, Jan. 2018.
• R. C. Ronel, 西林一彦, 西沢望, 宗片比呂夫. Investigation of Helicity-dependent Photocurrent at Room Temperature with a Fe/x-AlOX/p-GaAs Schottky Junction based Spin Photodiode, 第9回 文部科学省「最先端の光の創成を目指したネットワーク研究拠点プログラム」 シンポジウム, Jan. 2017.
• 西沢望, 西林一彦, R. C. Ronel, 宗片比呂夫. 円偏光発光ダイオードの開発, 第9回 文部科学省「最先端の光の創成を目指したネットワーク研究拠点プログラム」 シンポジウム, Jan. 2017.

学位論文

• A study on lateral-type spin-photodiodes based on metal-insulator-semiconductor junctions,  Thesis,  Doctor (Engineering),  Tokyo Institute of Technology,  2017/09/20,   
• A study on lateral-type spin-photodiodes based on metal-insulator-semiconductor junctions,  Summary,  Doctor (Engineering),  Tokyo Institute of Technology,  2017/09/20,   
• A study on lateral-type spin-photodiodes based on metal-insulator-semiconductor junctions,  Exam Summary,  Doctor (Engineering),  Tokyo Institute of Technology,  2017/09/20,   

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