氏名

藤岡 淳(ふじおか じゅん)

略歴

2000年 3月私立桐朋高等学校 卒業
2004年 3月東京大学工学部物理工学科 卒業
2008年 9月東京大学大学院工学系研究科物理工学専攻 博士課程修了 博士(工学)
2008年 10月日本学術振興会 特別研究員(PD)
2009年 4月科学技術振興機構 ERATO十倉マルチフェロイックスプロジェクト 研究員
2011年 4月東京大学大学院工学系研究科物理工学専攻 助教
2013年 12月より東京大学大学院工学系研究科物理工学専攻 講師

研究分野

固体物理学

原著論文

  1. “Anomalous domain-wall conductance in pyrochlore-type Nd2Ir2O7 on the verge of the metal-insulator transition”
    K. Ueda, J. Fujioka, Y. Takahashi, T. Suzuki, S. Ishiwata, Y. Taguchi, M. Kawasaki, and Y. Tokura
    Physical Review B 89, 075127 (2014)
  2. “Spin-Orbital Superstructure in Strained Ferrimagnetic Perovskite Cobalt Oxide”
    J. Fujioka, Y. Yamasaki, H. Nakao, R. Kumai, Y. Murakami, M. Nakamura, M. Kawasaki, and Y. Tokura
    Physical Review Letters 111, 027206 (2013)
  3. “Electronic Phase Transition and an Anomalous Ordered Phase in Ba2Ti13O22 with 3d1 Ions on a Triangle-Based Lattice”
    K. Takayama, T. Koyama, S. Mori, K. Kato, M. Takata, J. Fujioka, Y. Tokura, J. Miyazaki, and T. Katsufuji
    Physical Review Letters 110, 196405 (2013)
  4. “Variation of Charge Dynamics in the Course of Metal-Insulator Transition for Pyrochlore-Type Nd2Ir2O7
    K. Ueda, J. Fujioka, Y. Takahashi, T. Suzuki, S. Ishiwata, Y. Taguchi and Y. Tokura
    Physical Review Letters 109, 136402-1-5 (2012)
  5. “Soft phonon mode coupled with antiferromagnetic order in incipient-ferroelectric Mott insulators Sr1-xBaxMnO3
    H. Sakai, J. Fujioka, T. Fukuda, M. S. Bahramy, D. Okuyama, R. Arita, T. Arima, A. Q. R. Baron, Y. Taguchi, and Y. Tokura
    Physical Review B 86, 104407 1-11 (2012)
  6. “Variation of charge dynamics upon the helimagnetic and metal-insulator transitions for perovskite AFeO3 (A = Sr and Ca)”
    J. Fujioka, S Ishiwata, Y. Kaneko, Y. Taguchi and Y. Tokura
    Physical Review B 85, 155141 1-5 (2012)
  7. "Feroelectricity and Pressure-Induced Phenomena Driven by Neutral Ionic Valence Instability of Acid-Base Supramolecules"
    Reiji Kumai, Sachio Horiuchi, Jun Fujioka, and Yoshinori Tokura
    Journal of The American chemical society 134, 1036-1046 (2012)
  8. “Photocarrier collection from depletion layer of LaMnO3
    J. Fujioka, M. Nakamura, M. Kawasaki, and Y. Tokura
    Journal of Applied Physics 111, 016107 1-3 (2012)
  9. “Displacement-Type Ferroelectricity with Off-Center Magnetic Ions in Perovskite Sr1-xBaxMnO3”
    H. Sakai, J. Fujioka, T. Fukuda, D. Okuyama, D. Hashizume, F. Kagawa, H. Nakao, Y. Murakami, T. Arima, A. Q. R. Baron, Y. Taguchi, and Y. Tokura
    Physical Review Letters 107, 137601-1-5 (2011)
  10. “Thermoelectric response in the incoherent transport region near Mott transition: The case study of La1-xSrxVO3
    M. Uchida, K. Oishi, M. Matsuo, W. Koshibae, Y. Onose, M. Mori, J. Fujioka, S. Miyasaka, S. Maekawa and Y. Tokura
    Physical Review B, 83, 165127-1-5 (2011)
  11. "Structural and magnetic phase transitions of the orthovanadates RVO3 (R = Dy, Ho, Er) as seen via neutron diffraction"
    M. Reehuis, C. Ulrich, K. Prokes, S. Matas, J. Fujioka, S. Miyasaka, Y. Tokura, and B. Keimer
    Physical Review B, 83, 064404-1-10 (2011)
  12. “Optical characterization of spin-charge-orbital orders in Pr(Sr1-yCay)2Mn2O7
    I. Ishii, Y. Tokunaga, J. Fujioka, Y. Onose, Y. Tokura,
    Physical Review B, 82, 245103-1-6 (2010)
  13. “Interface band profiles of Mott-insulator/Nb : SrTiO3 heterojunctions as investigated by optical spectroscopy”
    M. Nakamura, A. Sawa, J. Fujioka, M. Kawasaki, Y. Tokura,
    Physical Review B Rapid Communications, 82, 201101-1-4 (2010)
  14. “Supramolecular approach to organic ferroelectrics”
    S. Horiuchi, R. Kumai, J. Fujioka, Y. Tokura,
    Physica B-condensed matter, 405, S334-S337 (2010)
  15. “Critical competition between two distinct orbital-spin ordered states in perovskite vanadates”
    J. Fujioka, T. Yasue, S. Miyasaka, Y. Yamasaki, T. Arima, H. Sagayama, T. Inami, K. Ishii, Y. Tokura,
    Physical Review B, 82, 144425-1-12 (2010)
  16. “Optical investigation of the collective dynamics of charge-orbital density waves in layered manganites”
    J. Fujioka, Y. Ida, Y. Takahashi, N. Kida, R. Shimano, Y. Tokura,
    Physical Review B Rapid Communications, 82, 140409(R)-1-4 (2010)
  17. "Control of orbital ordered state in strained Nd0.25Sr1.75MnO4 films"
    K. S. Takahashi, J. Fujioka, Y. Ida, M. Kawasaki, and Y. Tokura,
    Applied Physics Letters, 96, 202508-1-3 (2010)
  18. "Ferroelectricity in one-dimensional organic quantum magnet"
    F. Kagawa, S. Horiuchi, M. Tokunaga, J. Fujioka, and Y. Tokura
    Nature Physics, 6, 169-172 (2010)
  19. "Anisotropic polarization pi-molecular skeleton coupled dynamics in proton-displacive organic ferroelectrics"
    J. Fujioka, S. Horiuchi, N. Kida, R. Shimano, and Y. Tokura,
    Physical Review B, 80, 125134-1-8 (2009)
  20. "Dynamical Disorder of pi-Molecular Structures Induced by Proton Dynamics in an Organic Ferroelectric Compound"
    J. Fujioka, S. Horiuchi, F. Kagawa, and Y. Tokura,
    Physical Review Letters, 102, 197601-1-4 (2009)
  21. "Magneto-Optical Characterization on the Ferromagnetic-Paramagnetic Transitions in the Composition-Spread Epitaxial Film of Sr1-xCaxRuO3"
    N. Hosaka, H. Yamada, Y. Shimada, J. Fujioka, S. Bordacs, I Kezsmarki, M. Kawasaki, and Y. Tokura,
    Applied Physics Express, 1, pp113001-1-3(2008)
  22. "Evidence for an Electric-Dipole Active Continuum Band of Spin Excitations in Multiferroic TbMnO3"
    Y. Takahashi, N. Kida, Y. Yamasaki, J. Fujioka, T. Arima, R. Shimano, S. Miyahara, M. Mochizuki, N. Furukawa, and Y. Tokura,
    Physical Review Letters, 101, pp187201-1-4(2008)
  23. "Charge dynamics in thermally and doping induced insulator-metal transitions of (Ti1-xVx)2O3"
    M. Uchida, J. Fujioka, Y. Onose, and Y. Tokura,
    Physical Review Letters, 101, pp066406-1-4 (2008)
  24. J. Fujioka, S. Miyasaka, and Y. Tokura
    "Doping variation of anisotropic charge and orbital dynamics in Y1-xCaxVO3: Comparison with La1-xSrxVO3"
    Physical Review B, 77, pp144402-1-10(2008)
  25. "Magnetic field switching between the two orbital-ordered states in DyVO3"
    S. Miyasaka, T. Yasue, J. Fujioka, Y. Yamasaki, Y. Okimoto, R. Kumai, T. Arima, and Y. Tokura,
    Physical Review Letters,99, pp217201-1-4(2007)
  26. "Doping variation of orbitally induced anisotropy in the electronic structure of La1-xSrxVO3"
    J. Fujioka, S. Miyasaka, and Y. Tokura
    Physical Review Letters, 97, 196401-1-4(2006)
  27. "Raman study of spin and orbital order and excitations in perovskite-type RVO3 (R = La, Nd, and Y)"
    S. Miyasaka, J. Fujioka, M. Iwama, Y. Okimoto, and Y. Tokura,
    Physical Review B, 73, pp224436-1-9 (2006)
  28. "Orbital disordering and the metal-insulator transition with hole doping in perovskite-type vanadium oxides"
    J. Fujioka, S. Miyasaka, and Y. Tokura,
    Physical Review B, 72, pp024460-1-5 (2005)
  29. "One-dimensional orbital excitations in vanadium oxides"
    S. Miyasaka, S. Onoda, Y. Okimoto, J. Fujioka, M. Iwama, N. Nagaosa and Y. Tokura,
    Physical Review Letters, 94, pp076405-1-4 (2005)