Akira Ohtomo

aohtomo Prof. Akira Ohtomo
Department of Chemical Science and Engineering, Tokyo Institute of Technology
2-12-1 S1-1 Ookayama, Meguro, Tokyo 152-8552, Japan
tel: +81-3-5734-2145
fax: +81-3-5734-2145
email: ohtomo.a.aa[at]m.titech.ac.jp

Education

1991.4-1995.3 Department of Inorganic Materials, Tokyo Institute of
Technology, Bachelor of Engineering
1995.4-1997.3 Department of Engineering Materials, Tokyo Institute of
Technology, Master of Engineering
1997.4-2000.3 Department of Innovative and Engineered Materials, Tokyo
Institute of Technology, Ph. D. of Engineering

Professional Carrier

2000.4-2002.6 Postdoctoral Member of Technical Stuff, Materials Physics
Department, Bell Laboratories, Lucent Technologies, U.S.A.
2002.7-2007.3 Research Associate, Institute for Materials Research, Tohoku
University
2002.7-2006.3 Visiting Researcher, Combinatorial Materials Exploration and
Technology (COMET), National Institute for Research in Inorganic
Materials (NIMS)
2003.10-2007.3 Researcher, PRESTO, Japan Science and Technology Agency (JST)
2007.4-2009.8 Assistant Professor, Institute for Materials Research, Tohoku
University
2009.9-2009.10 Associate Professor, Institute for Materials Research, Tohoku University
2009.11-2010.3 Commissioned Professor, Institute for Materials Research, Tohoku University
2009.11-2016.3 Professor, Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
2012.8-Present Principal Investigator, Materials Research Center for Element Strategy, Tokyo Institute of Technology
2016.4-Present Professor, Department of Chemical Science and Engineering, Tokyo Institute of Technology

Selected Publications

  1. A. Ohtomo, S. Chakraverty, H. Mashiko, T. Oshima and M. Kawasaki,
    “Spontaneous atomic ordering and magnetism in epitaxially stabilized double perovskites”, J. Mater. Res. 28, 689-695 (2013).
  2. H. Mashiko, T. Oshima and A. Ohtomo,
    “Band-gap narrowing in α-(CrxFe1-x)2O3 solid-solution films,”
    Appl. Phys. Lett. 99, 241904-1-3 (2011).
  3. S. Chakraverty, A. Ohtomo, D. Okuyama, M. Saito, M. Okude, R. Kumai, T. Arima, Y. Tokura, S. Tsukimoto, Y. Ikuhara and M. Kawasaki,
    “Ferrimagnetism and spontaneous ordering of transition metals in double perovskite La2CrFeO6 films”, Phys. Rev. B 84, 064436-1-5 (2011).
  4. A. Tsukazaki, S. Akasaka, K. Nakahara, Y. Ohno, H. Ohno, D. Maryenko, A. Ohtomo and M. Kawasaki,
    “Observation of the fractional quantum hall effect in an oxide,” Nat. Mater. 9, 889-893 (2010).
  5. K. Nakahara, S. Akasaka, H. Yuji, K. Tamura, T. Fujii, Y. Nishimoto, D. Takamizu, A. Sasaki, T. Tanabe, H. Amaike, T. Onuma, S. F. Chichibu, A. Tsukazaki, A. Ohtomo and M. Kawasaki,
    “Nitrogen doped MgxZn1-xO/ZnO single heterostructure ultraviolet light-emitting diodes on ZnO substrates”, Appl. Phys. Lett. 97, 013501-1-3 (2010).
  6. A. Tsukazaki, S. Akasaka, K. Nakahara, Y. Ohno, H. Ohno, D. Maryenko, A. Ohtomo and M. Kawasaki,
    “Observation of the fractional quantum hall effect in an oxide”, Nat. Mater. 9, 889-893 (2010).
  7. H. Yuan, H. Shimotani, A. Tsukazaki, A. Ohtomo, M. Kawasaki and Y. Iwasa,
    “Hydrogenation-induced surface polarity recognition and proton memory behavior at protic-ionic-liquid/oxide electric-double-layer interfaces”,
    J. Am. Chem. Soc. 132, 6672-6678 (2010).
  8. M. Nakano, A. Tsukazaki, A. Ohtomo, K. Ueno, S. Akasaka, H. Yuji, K. Nakahara, T. Fukumura and M. Kawasaki,
    “Electronic-field control of two-dimensional electrons in polymer-gated-oxide semiconductor heterostructures”, Adv. Materi. 22, 876-879 (2010).
  9. S. Chakraverty, A. Ohtomo, M. Okude, K. Ueno and M. Kawasaki,
    “Epitaxial structure of (001) and (111)-oriented perovskite ferrate films grown by pulsed-laser deposition,”, Cryst. Growth Des. 10, 1725-1729 (2010).
  10. K. Ueno, S. Nakamura, H. Shimotani, A. Ohtomo, K. Kimura, T. Nojima, H. Aoki, Y. Iwasa and M. Kawasaki,
    “Electric-field-induced superconductivity in an insulator”, Nat. Mater. 7, 855-858 (2008).
  11. A. Ohtomo and H. Y. Hwang, “Growth mode control of the free carrier density in SrTiO3-δ films”, J. Appl. Phys. 102, 083704-1-6 (2007).
  12. A. Tsukazaki, A. Ohtomo, T. Kita, Y. Ohno, H. Ohno and M. Kawasaki,
    “Quantum Hall-effect in polar oxide heterostructures”, Science 315, 1388-1391 (2007).
  13. A. Ohtomo, J. Nishimura, Y. Murakami and M. Kawasaki,
    “Electronic transport properties in SrTiO3-LaAlO3 solid-solution films”, Appl. Phys. Lett. 88, 232107-1-3 (2006).
  14. A. Tsukazaki, A. Ohtomo & M. Kawasaki, “High-mobility electron transport in ZnO thin films”, Appl. Phys. Lett. 88, 152106-1-3 (2006).
  15. A. Tsukazaki, A. Ohtomo, T. Onuma, M. Ohtani, T. Makino, M. Sumiya, K. Ohtani, S. F. Chichibu, S. Fuke, Y. Segawa, H. Ohno, H. Koinuma and M. Kawasaki,
    “Repeated temperature modulation epitaxy for p-type doping and light-emitting diode based on ZnO,” Nature Mater. 4, 42-46 (2005).
  16. T. I. Suzuki, A. Ohtomo, A. Tsukazaki, F. Satoh, J. Nishii, H. Ohno and M. Kawasaki,
    “Hall and field-effect mobilities of electrons accumulated at a lattice-matched ZnO/ScAlMgO4 heterointerface”, Adv. Mater. 16, 1887-1890 (2004).
  17. D. A. Muller, N. Nakagawa, A. Ohtomo, J. L. Grazul and H. Y. Hwang,
    “Atomic-scale imaging of nanoengineered oxygen vacancy profiles in SrTiO3“, Nature 430, 657-661 (2004).
  18. A. Ohtomo and H. Y. Hwang, “A high mobility electron gas at the LaAlO3/SrTiO3 heterointerface”, Nature 427, 423-426 (2004).
  19. A. Ohtomo, D. A. Muller, J. L. Grazul and H. Y. Hwang,
    “Artificial charge-modulation in atomic-scale perovskite titanate superlattices”, Nature 419, 378-380 (2002).
  20. A. Ohtomo, K. Tamura, M. Kawasaki, T. Makino, Y. Segawa, Z. K. Tang, G. K. L. Wong, Y. Matsumoto and H. Koinuma,
    “Room-temperature stimulated emission of excitons in ZnO/(Mg, Zn)O superlattices”, Appl. Phys. Lett. 77, 2204-2206 (2000).
  21. A. Ohtomo, M. Kawasaki, I. Ohkubo, H. Koinuma, T. Yasuda and Y. Segawa,
    “Structure and optical properties of ZnO/Mg0.2Zn0.8O superlattices”, Appl. Phys. Lett. 75, 980-982 (1999).
  22. A. Ohtomo, M. Kawasaki, T. Koida, K. Masubuchi, H. Koinuma, Y. Sakurai, Y. Yoshida, T. Yasuda and Y. Segawa,
    “MgxZn1-xO as a II-VI widegap semiconductor alloy”, Appl. Phys. Lett. 72, 2466-2468 (1998).