Basic Information

Affiliated programs (koza)

• Graduate School of Engineering, 分子工学専攻 分子材料学講座, 准教授

Professional Memberships

• 応用物理学会

Academic Degree

• 修士（工学）(京都大学)
• 博士（工学）(京都大学)

Research History

• From Apr. 2024, To Present

  Kyoto University, Institute for Chemical Research, Associate Professor
• From Feb. 2021, To Mar. 2024

  Kyoto University, Institute for Chemical Research Division of Materials Chemistry, Assistant Professor
• From Dec. 2020, To Jan. 2021

  Kyoto University, Institute for Chemical Research Division of Materials Chemistry, Program Specific Researcher
• From Apr. 2014, To Dec. 2020

  DENSO CORPORATION
• From Jun. 2018, To Jun. 2020

  Stuttgart University, 3rd Institute of Physics, Guest researcher
• From Apr. 2011, To Mar. 2014

  Japan Society for the Promotion of Science, Doctoral Research Fellow (DC1)

Language of Instruction

• Japanese
• English

ID,URL

• ORCID ID

  0000-0001-8007-2087

• J-Global ID

  202101009748299271

researchmap URL

• https://researchmap.jp/nmorioka

Research

Research Topics, Overview of the research

• Research Topics

  Optically active spin defect in semiconductors, color centers, quantum sensing, quantum information

Research Areas

• Nanotechnology/Materials, Optical engineering and photonics
• Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electronic devices and equipment

Papers

• Coherent photoelectrical readout of single spins in silicon carbide at room temperature

  Tetsuri Nishikawa; Naoya Morioka; Hiroshi Abe; Koichi Murata; Kazuki Okajima; Takeshi Ohshima; Hidekazu Tsuchida; Norikazu Mizuochi

  Nature Communications, 15 Apr. 2025, Peer-reviewed, Lead author, Corresponding author

  
• Control of impurity incorporation into CVD diamond synthesized with tert-butylphosphine for quantum applications

  Riku Kawase; Hiroyuki Kawashima; Hiromitsu Kato; Norio Tokuda; Satoshi Yamasaki; Masahiko Ogura; Toshiharu Makino; Naoya Morioka; Norikazu Mizuochi

  Applied Physics Letters, 17 Feb. 2025, Peer-reviewed

  
• Emergence of giant spin-orbit torque in a two-dimensional hole gas on the hydrogen-terminated diamond surface

  Fujio Sako; Ryo Ohshima; Yuichiro Ando; Naoya Morioka; Hiroyuki Kawashima; Riku Kawase; Norikazu Mizuochi; Hans Huebl; Masashi Shiraishi

  Physical Review B, 17 Dec. 2024

  
• Quantum light sources based on color centers in diamond and silicon carbide

  Norikazu Mizuochi; Naoya Morioka

  Quantum Photonics, 2024

  
• Static and dynamic stark tuning of the silicon vacancy in silicon carbide

  Alexander D. White; Daniil M. Lukin; Melissa A. Guidry; Rahul Trivedi; Naoya Morioka; Charles Babin; Florian Kaiser; Jawad Ul-Hassan; Nguyen Tien Son; Takeshi Ohshima; Praful Vasireddy; Mamdouh Nasr; Emilio Nanni; Jörg Wrachtrup; Jelena Vuckovic

  Optics InfoBase Conference Papers, 2020

  
• Small multimodal thermometry with detonation-created multi-color centers in detonation nanodiamond

  Frederick T.-K. So; Nene Hariki; Masaya Nemoto; Alexander I. Shames; Ming Liu; Akihiko Tsurui; Taro Yoshikawa; Yuto Makino; Masanao Ohori; Masanori Fujiwara; Ernst David Herbschleb; Naoya Morioka; Izuru Ohki; Masahiro Shirakawa; Ryuji Igarashi; Masahiro Nishikawa; Norikazu Mizuochi

  APL Materials, 01 May 2024

  Access this paper :

  
• Spin-Dependent Dynamics of Photocarrier Generation in Electrically Detected Nitrogen-Vacancy-Based Quantum Sensing

  Hiroki Morishita; Naoya Morioka; Testuri Nishikawa; Hajime Yao; Shinobu Onoda; Hiroshi Abe; Takeshi Ohshima; Norikazu Mizuochi

  Physical Review Applied, 20 Mar. 2023

  Access this paper :

  
• Orientation and Size Effects on Phonon-limited Hole Mobility in Rectangular Cross-sectional Germanium Nanowires

  Hajime Tanaka; Seigo Mori; Naoya Morioka; Jun Suda; Tsunenobu Kimoto

  2014 IEEE SILICON NANOELECTRONICS WORKSHOP (SNW), 2014, Peer-reviewed

  
• Size and geometric effects on conduction band structure of GaAs nanowires

  H. Tanaka; N. Morioka; S. Mori; J. Suda; T. Kimoto

  2013 International Meeting for Future of Electron Devices, Kansai (IMFEDK), 2013

  
• Electrical detection of nuclear spins via silicon vacancies in silicon carbide at room temperature

  Tetsuri Nishikawa; Naoya Morioka; Hiroshi Abe; Hiroki Morishita; Takeshi Ohshima; Norikazu Mizuochi

  Applied Physics Letters, 31 Oct. 2022, Corresponding author

  Access this paper :

  
• Spin-Optical Dynamics and Quantum Efficiency of a Single V1 Center in Silicon Carbide

  Naoya Morioka; Di Liu; Öney O. Soykal; Izel Gediz; Charles Babin; Rainer Stöhr; Takeshi Ohshima; Nguyen Tien Son; Jawad Ul-Hassan; Florian Kaiser; Jörg Wrachtrup

  Physical Review Applied, 03 May 2022, Lead author

  
• Fabrication and nanophotonic waveguide integration of silicon carbide colour centres with preserved spin-optical coherence

  Charles Babin; Rainer Stöhr; Naoya Morioka; Tobias Linkewitz; Timo Steidl; Raphael Wörnle; Di Liu; Erik Hesselmeier; Vadim Vorobyov; Andrej Denisenko; Mario Hentschel; Christian Gobert; Patrick Berwian; Georgy V. Astakhov; Wolfgang Knolle; Sridhar Majety; Pranta Saha; Marina Radulaski; Nguyen Tien Son; Jawad Ul-Hassan; Florian Kaiser; Jörg Wrachtrup

  Nature Materials, Jan. 2022

  
• Spectrally reconfigurable quantum emitters enabled by optimized fast modulation

  Daniil M. Lukin; Alexander D. White; Rahul Trivedi; Melissa A. Guidry; Naoya Morioka; Charles Babin; Öney O. Soykal; Jawad Ul-Hassan; Nguyen Tien Son; Takeshi Ohshima; Praful K. Vasireddy; Mamdouh H. Nasr; Shuo Sun; Jean-Philippe W. MacLean; Constantin Dory; Emilio A. Nanni; Jörg Wrachtrup; Florian Kaiser; Jelena Vučković

  npj Quantum Information, 17 Sep. 2020

  
• Spin-controlled generation of indistinguishable and distinguishable photons from silicon vacancy centres in silicon carbide

  Naoya Morioka; Charles Babin; Roland Nagy; Izel Gediz; Erik Hesselmeier; Di Liu; Matthew Joliffe; Matthias Niethammer; Durga Dasari; Vadim Vorobyov; Roman Kolesov; Rainer Stöhr; Jawad Ul-Hassan; Nguyen Tien Son; Takeshi Ohshima; Péter Udvarhelyi; Gergő Thiering; Adam Gali; Jörg Wrachtrup; Florian Kaiser

  Nature Communications, 20 May 2020, Lead author, Corresponding author

  
• Developing silicon carbide for quantum spintronics

  Nguyen T. Son; Christopher P. Anderson; Alexandre Bourassa; Kevin C. Miao; Charles Babin; Matthias Widmann; Matthias Niethammer; Jawad Ul Hassan; Naoya Morioka; Ivan G. Ivanov; Florian Kaiser; Joerg Wrachtrup; David D. Awschalom

  Applied Physics Letters, 11 May 2020

  
• Vibronic States and Their Effect on the Temperature and Strain Dependence of Silicon-Vacancy Qubits in 4H - SiC

  Péter Udvarhelyi; Gergő Thiering; Naoya Morioka; Charles Babin; Florian Kaiser; Daniil Lukin; Takeshi Ohshima; Jawad Ul-Hassan; Nguyen Tien Son; Jelena Vučković; Jörg Wrachtrup; Adam Gali

  Physical Review Applied, 07 May 2020

  
• Coherent electrical readout of defect spins in silicon carbide by photo-ionization at ambient conditions

  Matthias Niethammer; Matthias Widmann; Torsten Rendler; Naoya Morioka; Yu-Chen Chen; Rainer Stöhr; Jawad Ul Hassan; Shinobu Onoda; Takeshi Ohshima; Sang-Yun Lee; Amlan Mukherjee; Junichi Isoya; Nguyen Tien Son; Jörg Wrachtrup

  Nature Communications, Dec. 2019

  
• Electrical Charge State Manipulation of Single Silicon Vacancies in a Silicon Carbide Quantum Optoelectronic Device

  Matthias Widmann; Matthias Niethammer; Dmitry Yu. Fedyanin; Igor A. Khramtsov; Torsten Rendler; Ian D. Booker; Jawad Ul Hassan; Naoya Morioka; Yu-Chen Chen; Ivan G. Ivanov; Nguyen Tien Son; Takeshi Ohshima; Michel Bockstedte; Adam Gali; Cristian Bonato; Sang-Yun Lee; Jörg Wrachtrup

  Nano Letters, Sep. 2019

  
• Laser Writing of Scalable Single Color Centers in Silicon Carbide

  Yu-Chen Chen; Patrick S. Salter; Matthias Niethammer; Matthias Widmann; Florian Kaiser; Roland Nagy; Naoya Morioka; Charles Babin; Jürgen Erlekampf; Patrick Berwian; Martin J. Booth; Jörg Wrachtrup

  Nano Letters, Mar. 2019

  
• Real-time first-principles simulations of thermionic emission from N-doped diamond surfaces

  Tomoki Shinozaki; Satoshi Hagiwara; Naoya Morioka; Yuji Kimura; Kazuyuki Watanabe

  Applied Physics Express, May 2018

  
• Enhanced thermionic electron emission from a stacked structure of phosphorus-doped diamond with a nitrogen-doped diamond surface layer

  M. Kataoka; N. Morioka; Y. Kimura; S. Sobue; H. Kato; D. Takeuchi; S. Yamasaki

  physica status solidi (a), 07 Jun. 2016

  
• Phonon-Limited Electron Mobility in Rectangular Cross-Sectional Ge Nanowires

  Hajime Tanaka; Seigo Mori; Naoya Morioka; Jun Suda; Tsunenobu Kimoto

  IEEE Transactions on Electron Devices, Jun. 2014

  
• Quantum-confinement effects on conduction band structure of rectangular cross-sectional GaAs nanowires

  H. Tanaka; N. Morioka; S. Mori; J. Suda; T. Kimoto

  Journal of Applied Physics, 07 Feb. 2014

  Access this paper :

  
• Geometrical and band-structure effects on phonon-limited hole mobility in rectangular cross-sectional germanium nanowires

  H. Tanaka; S. Mori; N. Morioka; J. Suda; T. Kimoto

  Journal of Applied Physics, 2014

  Access this paper :

  
• Orientation and Shape Effects on Ballistic Transport Properties in Gate-All-Around Rectangular Germanium Nanowire nFETs

  Seigo Mori; Naoya Morioka; Jun Suda; Tsunenobu Kimoto

  IEEE Transactions on Electron Devices, Mar. 2013

  
• Etching-limiting process and origin of loading effects in silicon etching with hydrogen chloride gas

  Naoya Morioka; Jun Suda; Tsunenobu Kimoto

  Japanese Journal of Applied Physics, 2013, Lead author

  
• Bandgap shift by quantum confinement effect in 〈100〉 Si-nanowires derived from threshold-voltage shift of fabricated metal-oxide-semiconductor field effect transistors and theoretical calculations

  Hironori Yoshioka; Naoya Morioka; Jun Suda; Tsunenobu Kimoto

  Journal of Applied Physics, Mar. 2011

  Access this paper :

  
• Quantum-confinement effect on holes in silicon nanowires: Relationship between wave function and band structure

  Naoya Morioka; Hironori Yoshioka; Jun Suda; Tsunenobu Kimoto

  Journal of Applied Physics, Mar. 2011, Lead author

  Access this paper :

  
• Mobility oscillation by one-dimensional quantum confinement in Si-nanowire metal-oxide-semiconductor field effect transistors

  Hironori Yoshioka; Naoya Morioka; Jun Suda; Tsunenobu Kimoto

  Journal of Applied Physics, Aug. 2009

  Access this paper :

  

Misc.

• Shape and Size Effects on Hole Mobility of Rectangular Cross-sectional Ge Nanowires

  TANAKA Hajime; MORI Seigo; MORIOKA Naoya; SUDA Jun; KIMOTO Tsunenobu

  IEICE technical report. Electronic information displays, 12 Dec. 2014

  
• Impacts of Orientation and Cross-sectional Shape on Mobility of P-channel Si Nanowire MOSFETs

  FUJIHARA Hiroaki; MORIOKA Naoya; TANAKA Hajime; SUDA Jun; KIMOTO Tsunenobu

  Technical report of IEICE. SDM, 12 Dec. 2014

  
• Shape and Size Effects on Conduction Band Structure of Si Nanowires with Rectangular Cross Section

  MORI Seigo; MORIOKA Naoya; SUDA Jun; KIMOTO Tsunenobu

  電子情報通信学会技術研究報告. SDM, シリコン材料・デバイス, 09 Dec. 2011

  Access this misc :

  
• Bandgap of <100> Si Nanowires Derived from Threshold Voltage of MOSFETs and Theoretical Calculations

  YOSHIOKA Hironori; MORIOKA Naoya; SUDA Jun; KIMOTO Tsunenobu

  IEICE technical report, 10 Dec. 2010

  
• Shape and Size Effects on Electron Mobility of Rectangular Cross-sectional Ge Nanowires

  TANAKA Hajime; MORI Seigo; MORIOKA Naoya; SUDA Jun; KIMOTO Tsunenobu

  電子情報通信学会技術研究報告 = IEICE technical report : 信学技報, 13 Dec. 2013

  

Presentations

• 炭化ケイ素中点欠陥の量子的な光スピン機能とデバイス

  森岡直也

  第3回超高速光エレクトロニクス研究会, 22 Aug. 2024, 一般社団法人 電子情報通信学会 超高速光エレクトロニクス研究会, Invited

  
• Photoelectrical readout of electron and nuclear spins in silicon carbide at ambient conditions

  Naoya Morioka

  Silicon Carbide: Classical and Quantum Technologies (816. WE-Heraeus-Seminar), 30 Jul. 2024, Wilhelm und Else Heraeus-Stiftung, Invited

  
• Efficient coherent photoelectrical readout of spin in silicon carbide at room temperature

  Naoya Morioka; Tetsuri Nishikawa; Hiroshi Abe; Koichi Murata; Kazuki Okajima; Takeshi Ohshima; Hidekazu Tsuchida; Norikazu Mizuochi

  The 5th Japan-Korea Spintronics Workshop, 30 May 2024, The Korean Magnetic Society, Spin-research network Japan (Spin-RNJ), Professional group of Spintronics in Japanese Society of Applied Physics (JSAP), Invited

  
• SiC中Si空孔スピンの光電流検出におけるイオン化経路の研究

  岡島和希; 森岡直也; 西川哲理; 阿部浩之; 大島武; 水落憲和

  第71回応用物理学会春季学術講演会, 24 Mar. 2024, 応用物理学会

  
• 半導体SiC中点欠陥スピンの高感度な電気的検出

  森岡直也; 西川哲理; 阿部浩之; 村田晃一; 岡島和希; 大島武; 土田秀一; 水落憲和

  スピントロニクス学術研究基盤と連携ネットワーク（Spin-RNJ）シンポジウム 2023年度報告会, 18 Mar. 2024, スピントロニクス学術研究基盤と連携ネットワーク(Spin-RNJ)

  
• Electrical Spin Detection in Diamond and Silicon Carbide for Quantum Technologies

  Naoya Morioka; Hiroki Morishita; Tetsuri Nishikawa; Norikazu Mizuochi

  Quantum Technology with Defects in Semiconductors (Satellite session of The 13th International Conference on Advanced Materials and Devices), 08 Dec. 2023, Invited

  
• Electrical detection of nuclear spins in silicon carbide using silicon vacancy quantum spins in ambient conditions

  Naoya Morioka; Tetsuri Nishikawa; Hiroshi Abe; Hiroki Morishita; Takeshi Ohshima; Norikazu Mizuochi

  INTERNATIONAL CONFERENCE ON SILICON CARBIDE AND RELATED MATERIAL 2023, 20 Sep. 2023

  
• 炭化ケイ素中の欠陥電子スピンおよび核スピンの室温での電気的検出

  森岡直也; 西川哲理; 阿部浩之; 森下弘樹; 大島武; 水落憲和

  「スピントロニクス学術研究基盤と連携ネットワーク（Spin-RNJ）」シンポジウム, 21 Mar. 2023

  
• Silicon Vacancy Quantum Light Source in Silicon Carbide

  森岡 直也

  第70回応用物理学会春季学術講演会 シンポジウム『固体量子ビット・スピン欠陥を用いた量子科学技術研究の最前線』, 17 Mar. 2023, Invited

  
• Room-temperature electrical detection of nuclear spins in silicon carbide

  Naoya Morioka; Tetsuri Nishikawa; Hiroshi Abe; Hiroki Morishita; Takeshi Ohshima; Norikazu Mizuochi

  The 5th International Forum on Quantum Metrology and Sensing, 29 Nov. 2022

  
• スピン発光欠陥におけるスピン依存項間交差速度の測定手法の提案

  森岡 直也; Di Liu; Öney O. Soykal; Izel Gediz; Charles Babin; Rainer Stöhr; 大島 武; Nguyen Tien Son; Jawad Ul Hassan; Florian Kaiser; Jörg Wrachtrup

  2021年第82回応用物理学会秋季学術講演会, 12 Sep. 2021

  
• Advanced approach to spin-selective intersystem crossing rates and application to silicon vacancy center in silicon carbide

  N. Morioka; D. Liu; Ö. O. Soykal; I. Gediz; C. Babin; R. Stöhr, T; Ohshima; N. T. Son; J. Ul-Hassan; F. Kaiser; J. Wrachtrup

  Optically Addressable Spin Qubits for Quantum Networks and Quantum Computing (718. WE=Heraeus-Seminar), 05 Aug. 2021

  
• Two-photon interference of indistinguishable photons from silicon carbide

  N. Morioka; C. Babin; R. Nagy; I. Gediz; E. Hesselmeier; D. Liu; M. Joliffe; M. Niethammer; D. Dasari; V. Vorobyov; R. Kolesov; R. Stöhr; J. Ul-Hassan; N. T. Son; T. Ohshima; P. Udvarhelyi; G; Thiering,A. Gali; J. Wrachtrup; F. Kaiser

  14th International Conference on New Diamond and Nano Carbons 2020/2021, 07 Jun. 2021

  
• Spin-optical dynamics study and approach to quantum electronics for quantum applications of silicon vacancy in SiC

  N. Morioka; D. Liu; T. Nishikawa; Ö. O. Soykal; H. Morishita; I. Gediz; C. Babin; R. Stöhr; H. Abe; T. Ohshima; N. T. Son; J. Ul-Hassan; F. Kaiser; J. Wrachtrup; N. Mizuochi

  The 20th International Symposium on the Physics of Semiconductors and Appllications, 21 Jul. 2022, Invited

  

Books and Other Publications

• Quantum Photonics (Photonic Materials and Applications Series)

  Yasuhiko Arakawa; Dieter Bimberg; L. Pavesi, Contributor, Chapter 7

  Elsevier, 02 Jul. 2024

  Find Kyoto University's collection of books :

  

Awards

• Dec. 2022

  5th International Forum on Quantum Metrology and Sensing (IFQMS), Best Short Presentation Award of SE-03A

  International society

  Naoya Morioka
• 21 Oct. 2011

  IEEE Electron Devices Society Kansai Chapter, IEEE Electron Devices Society Kansai Chapter MFSK Kansai Award (Student Award)
• 24 Mar. 2011

  Japan Society of Applied Physics, JSAP Young Scientist Presentation Award
• 05 Jun. 2015

  IEEE Electron Devices Society Kansai Chapter, International Meeting for Future of Electron Devices, Kansai (IMFEDK2015) Best Paper Award

External funds: Kakenhi

• SiCにおける電気的スピン注入に基いた局在スピン制御の開拓

  Grant-in-Aid for Research Activity Start-up

  0402:Nano/micro science, applied condensed matter physics, applied physics and engineering, and related fields

  Kyoto University

  森岡 直也

  From 30 Aug. 2021, To 31 Mar. 2024, Granted

  炭化ケイ素;スピントロニクス;シリコン空孔;核スピン;磁気共鳴;SiC;スピン注入;点欠陥スピン;半導体

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K20502/
• SiC欠陥スピンの電気的高効率読出の確立に向けたスピン・光・電荷ダイナミクス解明

  Grant-in-Aid for Scientific Research (B)

  Basic Section 21050:Electric and electronic materials-related

  Kyoto University

  森岡 直也

  From 01 Apr. 2022, To 31 Mar. 2025, Granted

  炭化ケイ素;SiC;点欠陥;スピン;磁気共鳴;光電流;半導体

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22H01526/
• SiC欠陥スピンの電気的高効率読出の確立に向けたスピン・光・電荷ダイナミクス解明

  Grant-in-Aid for Scientific Research (B)

  Basic Section 21050:Electric and electronic materials-related

  Kyoto University

  森岡 直也

  From 01 Apr. 2022, To 31 Mar. 2025, Granted

  炭化ケイ素;SiC;点欠陥;スピン;電気的検出磁気共鳴;磁気共鳴;光電流;半導体

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K22796/
• Organic quantum platform based on covalent bond between spin-functional polymer and diamond

  Grant-in-Aid for Scientific Research (B)

  Basic Section 21060:Electron device and electronic equipment-related

  Kyoto University

  重松 英

  From 01 Apr. 2024, To 31 Mar. 2027, Granted

  量子デバイス;ダイヤモンド;電子スピントロニクス

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K00945/

Education

Teaching subject(s)

• From 01 Apr. 2023, To 31 Mar. 2024

  Molecular Spectroscopy

  H408, Fall, Graduate School of Engineering, 1.5

Part-time lecturer

• From 01 Apr. 2024, To 31 Mar. 2025

  先端化学実験Ⅰ・Ⅱ（先端化学）

  通年144時間 , 京都大学, 工学部
• From 01 Apr. 2023, To 31 Mar. 2024

  先端化学実験Ⅰ・Ⅱ（先端化学）

  通年144時間, 京都大学, 工学部
• From 01 Apr. 2022, To 31 Mar. 2023

  先端化学実験Ⅰ・Ⅱ（先端化学）

  通年144時間, 京都大学, 工学部
• From 01 Apr. 2021, To 31 Mar. 2022

  Advanced Chemistry Laboratory I・Ⅱ(Advanced Chemistry)

  通年, 工学部

Administration

Faculty management (title, position)

• From 01 Apr. 2024, To 31 Mar. 2025

  化学研究所総務・教務委員会委員
• From 01 Apr. 2021, To 31 Mar. 2022

  化学研究所講演委員会委員

Academic, Social Contribution

Academic Contribution

• KS.1 固体量子センサ研究会 セッション24a-1BB 座長

  Panel moderator

  第71回応用物理学会春季学術講演会, From 24 Mar. 2024, To 24 Mar. 2024

  
• Session 4 Chair

  Panel moderator

  The 13th International Conference on Advanced Materials and Devices (ICAMD 2023), Satellite Session “Quantum Technology with Defects in Semiconductors (QTDS)”, From 08 Dec. 2023, To 08 Dec. 2023

  
• Session SE-03A-β1, Co-chair

  Panel moderator

  The 5th International Forum on Quantum Metrology and Sensing, From 29 Nov. 2022, To 29 Nov. 2022

  
• Session SE-03A-β2, Chair

  Panel moderator

  The 5th International Forum on Quantum Metrology and Sensing, From 29 Nov. 2022, To 29 Nov. 2022