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RIKEN Center for Emergent Matter Science Emergent Matter Science Research Support Team

Team Leader: Hikota Akimoto (Ph.D.)

Research Summary

Hikota  Akimoto(Ph.D.)

Our mission is to develop novel technologies with a wide range of applications in nanoscience and nanotechnology. We support the users in nanometer-scale fabrication and the characterization of specimens. We are also responsible for the operation of the facilities including the clean room and for the education of the users. We are collaborating with researchers for investigation of fundamental nanometer-scale phenomena which requires ultralow temperatures and high magnetic fields.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Engineering


  • Nano-meter scale fabrication
  • Device characterization
  • User education
  • Quantum devices

Selected Publications

  • 1.Hirao, M.; Yamanaka, D.; Yazaki, T.; Osako, J.; Iijima, H.; Shiokawa, T.; Akimoto, H.; Meguro, T.
    STM study on Adsorption Structures of Cs on the As-Terminated GaAs(001)(2x4) Surface by Alternating Supply of Cs and O-2
    IEICE Transactions on Electronics E99C, 376 (2016)
  • 2.Ikegami, H.; Akimoto, H.; Rees, D. G.; Kono, K.
    "Evidence for Reentrant Melting in a Quasi-One-Dimensional Wigner Crystal"
    Physical Review Letters, 109, 236802 (2012)
  • 3.Shimizu, M; Akimoto, H; Ishibashi K.
    "Electronic Transport of Single-Wall Carbon Nanotubes with Superconducting Contacts"
    Japanese Journal of Applied Physics, 50, 035102 (2011).
  • 4.Huang, S. M., Tokura, Y., Akimoto, H., Kono, K., Lin, J. J., Tarucha, S., and Ono, K.
    "Spin Bottleneck in Resonant Tunneling through Double Quantum Dots with Different Zeeman Splittings"
    Physical Review Letters, 104, 136801 (2010)
  • 5.Ikegami, H.; Akimoto, H.; Kono, K.
    "Nonlinear Transport of the Wigner Solid on Superfluid4He in a Channel Geometry"
    Physical Review Letters, 102, 046807 (2009).
  • 6.Nakamura, H., Tomita, H., Akimoto, H., Matsumura, R., Inoue, I., Hasegawa, T., Kono, K., Takagi H.
    "Tuning of Metal-Insulator Transition of Quasi-Two-Dimensional Electrons at Parylene/SrTiO3 Interface by Electric Field"
    Journal of Physical Society of Japan, 78 083713 (2009)
  • 7.Shimizu, Y., Akimoto, H., Tsujii, H. , Tajima, A., and Kato, R
    "Mott Transition in a Valence-Bond Solid Insulator with a Triangular Lattice."
    Physical Review Letters, 99, 256403 (2007).
  • 8.Akimoto, H; Xia, J. S.; Candela, D.; Mullin, J. S.; Adams, D. E..;Sullivan, N. S..
    "Giant viscosity enhancement in a spin-polarized fermi liquid"
    Physical Review Letters, 99, 095301, 2007
  • 9.Huang, SM; Lee, TC; Akimoto, H; Kono, K.; Lin, J.J.
    "Observation of strong electron dephasing in highly disordered Cu93Ge4Au3 thin films"
    Physical Review Letters, 99, 046601 (2007)
  • 10.Konstantinov, D; Isshiki, H; Monarkha, Y; Akimoto, H.: Shirahama, K.: Kono, K
    "Microwave-resonance-induced resistivity: Evidence of ultrahot surface-state electrons on liquid He-3"
    Physical Review Letters, 98, 235302 (2007)

Related Links

Lab Members

Principal investigator

Hikota Akimoto
Team Leader

Core members

Reiko Nakatomi
Technical Staff I
Yoshio Taguchi
Technical Staff I
Hideaki Oyama
Technical Staff I

Contact Information

Nanoscience Joint Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Tel: +81-(0)48-467-1343
Fax: +81-(0)48-467-5893
Email: nano-ds [at] riken.jp