Centers & Labs

RIKEN Center for Emergent Matter Science

Emergent Matter Science Research Support Team

Team Leader: Hikota Akimoto (Ph.D.)
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 Field


Related Research Fields

Materials Sciences

Research Subjects

  • Nano-meter scale fabrication and characterization
  • Maintenance of all aspect of Nano-Science Joint Labratory
  • Novel application nano-structure in ultra-low temperature

Selected Publications

  1. 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)
  2. Shimizu, M; Akimoto, H; Ishibashi K.
    "Electronic Transport of Single-Wall Carbon Nanotubes with Superconducting Contacts"
    Japanese Journal of Applied Physics, 50, 035102 (2011).
  3. 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)
  4. Ikegami, H.; Akimoto, H.; Kono, K.
    "Melting of a quasi-one-dimensional Wigner crystal: Electrons on superfluid He-4 in a narrow channel"
    Physical Review B, 82, 201104 (2010)
  5. Ikegami, H.; Akimoto, H.; Kono, K.
    "Nonlinear Transport of the Wigner Solid on Superfluid 4He 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/SrTiO${_{3}}$ 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)

Lab Members

Principal Investigator

Hikota Akimoto
Team Leader

Core Members

Kazuhiko Shihoyama
Technical Scientist
Ryoji Itoh
Technical Staff I
Satoshi Amaya
Technical Staff I

Contact information

Nanoscience Joint Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Email: nano-ds [at]

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