Fujimoto, Junji's web page

Department of Physics, University of Tokyo, Japan
last modified: 2022/05/25, published: 2015/04/22

See also: [Google Scholar Citations] [ResearcherID] [arXiv] [ResearchGate]

Curriculum Vitae

Name (FAMILY, First)
FUJIMOTO, Junji
Ph.D. in science from Osaka university in Japan in 2015
Affilication (Position / Division, Department, University, Country)
Special Researcher / Department of Physics, University of Tokyo, Japan
Research interests
Spintronics
Spin transport phenomena in multi-layer structure
Dirac electrons in crystals
Societies
The Physical Society of Japan

Education :

  • 2015.03
    Doctor of Science (D.Sc.) in Osaka University
  • 2013.04 - 2015.03
    JSPS Research Fellowship for Young Scientists (DC2)
  • 2012.04 - 2015.03
    Doctoral Course of Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
  • 2012.03
    Master of Engineering (M.Eng.)
  • 2010.04 - 2012.03
    Master’s Course of Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
  • 2010.03
    Bachelor of Engineering (B.Eng.)
  • 2007.04 - 2010.03
    Materials Physics Course, Department of Electronics and Materials Physics, Osaka University
  • 2006.04 - 2007.03
    Department of Electronics and Materials Physics, Osaka University
  • 2002.04 - 2005.03
    Nara prefectural Unebi Senior High School
  • 1986.12
    born in Nara Pref., Japan

TAs :

  • 2012 (2nd semester)
    Problem Class of Applied Physics III (Condensed Matter)
  • 2012 (1st semester)
    Problem Class of Fundamental Physics I (Electromagnetism and Analytical Mechanics)
  • 2011 (2nd semester)
    Problem Class of Fundamental Physics II (Electromagnetism)
  • 2011 (1st semester)
    Problem Class of Applied Physics II (Statistical Mechanics)
  • 2010 (1st & 2nd semester)
    Tutorial Class
Others
I’m a staff member of the Materials Science Workshop for Kansai Young Researchers.
I’m a staff member of the 56th Condensed Matter Physics Summer School. (2011)
I’m an ambassador of o-henro-san. (2008 -)

Publication & Presentation

Preprint

last modified:2022/06/15
  1. "Determination of spin relaxation time and spin diffusion length by oscillation of spin pumping signal" Junji Fujimoto, and Mamoru Matsuo, arXiv:1907.04639
  2. "The chirality-dependent second-order spin current in systems with time-reversal symmetry" Ryosuke Hirakida, Junji Fujimoto, and Masao Ogata, arXiv:2204.03263

Peer-reviewed

last modified:2022/06/15
  1. "Dirac Liquid Theory: 2nd Order Perturbation Approach" Junji Fujimoto, Yuki Fuseya, and Kazumasa Miyake, J. Phys. Soc. Jpn. Suppl. 81, SB042 (2012).
  2. "Ultraviolet divergence and Ward-Takahashi identity in a two-dimensional Dirac electron system with short-range impurities" Junji Fujimoto, Akio Sakai, and Hiroshi Kohno, Phys. Rev. B 87, 085437 (2013).
  3. "Transport Properties of Dirac Ferromagnet" Junji Fujimoto, and Hiroshi Kohno, Phys. Rev. B 90, 214418 (2014). arXiv:1404.4741
  4. "Strong Bias Effect on Voltage-Driven Torque at Epitaxial Fe-MgO Interface" Shinji Miwa, Junji Fujimoto, Philipp Risius, Kohei Nawaoka, Minori Goto, and Yoshishige Suzuki, Phys. Rev. X 7, 031018 (2017).
  5. "Intrinsic and Extrinsic Spin Hall Effects of Dirac Electrons" Takaaki Fukazawa, Hiroshi Kohno, and Junji Fujimoto, J. Phys. Soc. Jpn. 86, 094704 (2017). arXiv:1705.03605
  6. "Transport Coefficients of Dirac Ferromagnet: Effects of Vertex Corrections" Junji Fujimoto, Phys. Rev. B 97, 104421 (2018). arXiv:1708.06105
  7. "Nonlocal spin-charge conversion via Rashba spin-orbit interaction" Junji Fujimoto, and Gen Tatara, Phys. Rev. B 99, 054407 (2019). arXiv:1812.08884
  8. "Alternating current-induced interfacial spin-transfer torque" Junji Fujimoto, and Mamoru Matsuo, Phys. Rev. B 100, 220402(R) (2019). arXiv:1910.01306
  9. "Valley-Dependent Spin Transport in Monolayer Transition-Metal Dichalcogenides" Yuya Ominato, Junji Fujimoto, and Mamoru Matsuo, Phys. Rev. B 100, 220402(R) (2019). arXiv:2001.08670
  10. "Magnon current generation by dynamical distortion" Junji Fujimoto, and Mamoru Matsuo, Phys. Rev. B 102, 020406(R) (2020). arXiv:2004.14707
  11. "Adiabatic and nonadiabatic spin-transfer torques in antiferromagnets" Junji Fujimoto, Phys. Rev. B 103, 014436 (2021). arXiv:2009.02686
  12. "Generation of current vortex by spin current in Rashba systems" Florian Lange, Satoshi Ejima, Junji Fujimoto, Tomonori Shirakawa, Holger Fehske, Seiji Yunoki, and Sadamichi Maekawa, Phys. Rev. Lett. 126, 157202 (2021). arXiv:2011.08574
  13. "Zeeman coupling and Dzyaloshinskii-Moriya interaction driven by electric current vorticity" Junji Fujimoto, Wataru Koshibae, Mamoru Matsuo, and Sadamichi Maekawa, Phys. Rev. B 103, L220402 (2021).
  14. "Spin-charge conversion and current vortex in spin-orbit coupled systems" (invited) Junji Fujimoto, Florian Lange, Satoshi Ejima, Tomonori Shirakawa, Holger Fehske, Seiji Yunoki, and Sadamichi Maekawa, APL Materials 9, 060904 (2021). arXiv:2103.06540
  15. "Skyrmion Creation and Annihilation by Electric Current Vorticity" (invited) Junji Fujimoto, Hiroshi Funaki, Wataru Koshibae, Mamoru Matsuo, and Sadamichi Maekawa, IEEE Transactions on Magnetics (2022).
  16. "Thermoelectric power generation via transverse thermo-spin conversions" (invited) (Featured) (Scilight) Junji Fujimoto, and Masao Ogata, Appl. Phys. Lett. 120, 122404 (2022).
  17. "Seebeck effect of Dirac electrons" Junji Fujimoto, and Masao Ogata, J. Phys. Soc. Jpn. 91, 054603 (2022). arXiv:2106.04050
  18. "Spin Hall effect driven by the spin magnetic moment current in Dirac materials" Zhendong Chi, Guanxiong Qu, Yong-Chang Lau, Masashi Kawaguchi, Junji Fujimoto, Koki Takanashi, Masao Ogata, and Masamitsu Hayashi, Phys. Rev. B 105, 214419 (2022). arXiv:2205.11669

Oral presentation (Domestic)

  1. J. Fujimoto, A. Sakai and H. Kohno, “Ultraviolet Divergence in the Impurity Effect in 2D Dirac Electron System”
    JPS 2012 Spring Meeting, Kwansei Gakuin University, Japan
  2. J. Fujimoto and H. Kohno, “Transport Properties of a Dirac Ferromagnet”
    JPS 2012 Spring Meeting, Kwansei Gakuin University, Japan
  3. J. Fujimoto and H. Kohno, “Transport Properties of Dirac Ferromagnet II”
    JPS 2012 Fall Meeting, Yokohama National University, Japan
  4. J. Fujimoto and H. Kohno, “Gilbert damping torque of Dirac ferromagnet”
    JPS 2013 Fall Meeting, Tokushima University, Japan
  5. S. Kawabata, A. Sakai, J. Fujimoto, J. ShibataA and H. Kohno, “Gilbert Damping and Feedback Effect in Dirac and Rashba Ferromagnets”
    JPS 2013 Fall Meeting, Tokushima University, Japan
  6. J. Fujimoto and H. Kohno, “Transport Properties of Dirac Ferromagnet”
    The 3rd Meeting “Dirac electrons in solids”, Ako, Japan (2013).
  7. J. Fujimoto and H. Kohno, “Microscopic calculation of Rashba spin-orbit torques”
    JPS 70th Annual Meeting, Waseda University, Japan (2015).
  8. J. Fujimoto and H. Kohno, “Effects of Dirac points on Rashba spin-orbit torques”
    JPS 2015 Autumn Meeting, Kansai University, Japan (2015).
  9. J. Fujimoto, T. Fukazawa, and H. Kohno, “Effect of skew scattering on transport properties”
    JPS 2016 Autumn Meeting, Kanazawa University, Japan (2016).
  10. J. Fujimoto, “An effective model of antiferromagnetic metal in the adiabatic region and its spin-motive forces”
    JPS 2018 Autumn Meeting, Doshisha University, Japan (2018).
  11. J. Fujimoto, “Spin-motive forces of an antiferromagnetic metal in the adiabatic region”
    JPS 2018 Autumn Meeting, Kyushu University, Japan (2019).
  12. J. Fujimoto and M. Matsuo, “Oscillation in spin pumping and its electric detection”
    JPS 2019 Autumn Meeting, Gifu University, Japan (2019).
  13. J. Fujimoto and M. Matsuo, “Alternating current-induced interfacial spin-transfer torque”
    JPS 2020 Spring Meeting, Nagoya University, Japan (2020).
  14. J. Fujimoto and M. Matsuo, “Magnon current generation by dynamical distortion”
    JPS 2020 Autum Meeting, Online, Japan (2020).
  15. J. Fujimoto and M. Ogata, “Thermopower via thermo-spin conversion”
    JPS 2021 Autum Meeting, Online, Japan (2021).
  16. J. Fujimoto and M. Ogata, “Seebeck effect and spin Nernst effect in Dirac electrons”
    JPS 2021 Autum Meeting, Online, Japan (2021).
  17. J. Fujimoto, H. Funaki, W. Koshibae, M. Matsuo, S. Maekawa, “Zeeman coupling and Dzyaloshinskii-Moriya interaction driven by electric current vorticity”
    JPS 2022 Spring Meeting, Online, Japan (2022).

Poster presentation (Domestic)

  1. J. Fujimoto, Y. Fuseya and K. Miyake, “Dirac Liquid; 2nd Perturbation Theory”
    JPS 2011 Spring Meeting, Niigata University, Japan
  2. J. Fujimoto, H. Kohno, “Oder Parameters of Dirac Ferromagnet: Analysis by Self-consistent Equation”
    JPS 2013 Spring Meeting, Hiroshima University, Japan
  3. J. Fujimoto, H. Kohno, “Transport Properties of a Dirac Ferromagnet”
    YITP Symposium, “Dirac electrons in solids”, YITP, Kyoto, Japan
  4. J. Fujimoto, H. Kohno, “Effects of Vertex Corrections on Transport Coefficients of a Dirac Ferromagnet”
    JPS 2014 Spring Meeting, Tokai University, Japan
  5. J. Fujimoto, and H. Kohno,“Effects of Dirac points on Rashba spin-orbit torques"
    New Perspectives in Spintronic and Mesoscopic Physics, in Kashiwa, Japan, 2015.
  6. J. Fujimoto, H. Kohno, E. van der Bijl, and R.A. Duine, “Microscopic Calculation of Thermal Spin-Orbit Torques”
    JPS 2016 Spring Meeting, Tohoku-Gakuin University, Japan
  7. J. Fujimoto, “A Thermal Green Function Method for Non-linear Response”
    JPS 2017 Spring Meeting, Osaka University, Japan
  8. J. Fujimoto, and G. Tatara “Microscopic Theory of Rashba-Edelstein Magnetoresistance: Non-local Gauge Field Approach”
    JPS 2017 Autumn Meeting, Iwate University, Japan

Oral presentation (International)

  1. J. Fujimoto and H. Kohno, “Microscopic calculation of Rashba spin-orbit torques”
    APS March Meeting 2015, San Antonio, TX, US, 2015.
  2. J. Fujimoto and G. Tatara, “Effects of non-local emergent electromagnetic fields driven by Rashba spin-orbit coupling”, APS March Meeting 2018, Los Angels, CA, US, 2018.
  3. [invited] J. Fujimoto, W. Koshibae, M. Matsuo, and S. Maekawa, “Zeeman Coupling and Dzyaloshinskii-Moriya Interaction driven by Electric Current Vorticity”, APW-RIKEN-Tsinghua-Kavli workshop, Sept. 2020, online.
  4. [invited] J. Fujimoto, “Spin-charge conversion and current vortex”, APW-RIKEN-Tsinghua-Kavli workshop, Oct. 2021, online.
  5. [invited] J. Fujimoto, H. Funaki, W. Koshibae, M. Matsuo, and S. Maekawa, “Skyrmion Creation and Annihilation by Electric Current Vorticity”, The 15th Joint MMM-INTERMAG Conference, Jan. 2022, online.

Poster presentation (International)

  1. J. Fujimoto, Y. Fuseya and K. Miyake, “Dirac Liquid Theory: 2nd Order Perturbation Approach”
    TOKIMEKI 2011 International workshop on heavy fermions
  2. J. Fujimoto, H. Kohno, “Transport properties of Dirac Ferromagnet”
    the 7th International Conference on Physics and Applications of Spin-related Phenomena in Semiconductor (PASPS-VII), in Eindhoven, The Netherlands, 2012.
  3. J. Fujimoto, H. Kohno, “Transport properties of Dirac Ferromagnet”
    The 8th International Symposium on Metallic Multilayers (MML2013), Kyoto, Japan, 2012.
  4. J. Fujimoto, H. Kohno, “Transport properties of Dirac Ferromagnet”
    Concepts in Spintronics, KITP(UCSB), California, US, 2013.
  5. J. Fujimoto, and H. Kohno,“Effects of Dirac points on Rashba spin-orbit torques", New Perspectives in Spintronic and Mesoscopic Physics, in Kashiwa, Japan, 2015.
  6. J. Fujimoto, and H. Kohno,“Effects of skew scattering on non-dissipative transport properties", International workshop on nano-spin conversion science & quantum spin dynamics, University of Tokyo, Japan, 2016.
  7. J. Fujimoto, and G. Tatara,“Non-local spin-to-charge conversion via Rashba spin-orbit coupling", One-Day Symposium on Spintronic Properties of Graphene and Related 2D Materials, University of Tokyo, Japan, 2018.

Contact Information

Address
7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
Office
Faculty of Science Bldg.1, Room 939
Email address
fujimoto.junji@gmail.com
Email me in English or Japanese.