Emergent Matter Science Research Support Team

Principal Investigator

PI Name Hikota Akimoto
Degree Ph.D.
Title Team Leader
Brief Resume
1988 Research Associate, University of Tokyo
1990 Ph.D., Osaka City University
1996 Visiting Scientist, Leiden University, Netherlands
1998 Post Doctoral Associate, University of Florida, USA
2001 Senior Post Doctoral Associate, University of Massachusetts, USA
2003 Development Researcher, Nanoscience Development and Support Team, RIKEN
2008 Team Head, Nanoscience Development and Support Team, RIKEN
2013 Team Leader, Emergent Matter Science Research Support Team, Quantum Information Electronics Division, RIKEN Center for Emergent Matter Science (-present)


Our mission is to develop novel technologies with a wide range of applications in nanoscience and nanotechnology and to support the users in RIKEN for nanometer-scale fabrication and the characterization of specimens. We are responsible for the operation of the facilities including the clean room and the chemical rooms with suitable safety measure. The clean room is for fabrication and characterization of nanometer-scale devices and the chemical rooms are for those of wet samples for chemistry and biology. In the clean room and the chemical rooms, more than 30 apparatus have been installed and are open to the users. We are also responsible for the education of the users.

Research Fields

Materials Science, Physics


Nanometer scale fabrication
Sample characterization
Education of users


Supporting researchers for nanometer-scale fabrication

To build a sustainable society with environment friendly device, it is essential to realize energy effective devices and faster information process. To realize such devices, the researchers in the Center for Emergent Matter Science are enthusiastically pursuing to develop quantum devices, spin devices and quantum computers. In building such devices, highly sophisticated equipment and support for keeping best condition of the equipment are required.

Our team is established to support the researcher’s activity by providing skillful expertise. We are responsible for operation of the equipment like lithography systems including an electron beam lithography, a maskless UV photo lithography system, deposition systems like evaporators and sputters, dry and wet etching systems and observation system as scanning electron microscopy and for keeping them in the best condition. We instruct users in the usage of equipment and provide technical information in fabrication. With our effort, the researchers are now able to fabricate and characterize various devices in the range of 10 nm – 10 µm tirelessly.


Examples of the specimen fabricated in the clean room.


Hikota Akimoto

Team Leader hikota[at]riken.jp

Reiko Nakatomi

Technical Staff I

Yoshio Taguchi

Technical Staff I

Shinichiro Inoue

Visiting Scientist


  1. M. Hirao, D. Yamanaka, T. Yazaki, J. Osano, H. Iijima, T. Shiokawa, H. Akimoto, T. Meguro

    STM Study on Adsorption Structures of Cs on the As-Terminated GaAs(001)(2×4) Surface by Alternating Supply of Cs and O2

    IEICE Trans. Electron. E99C, 376 (2016)


2-1 Hirosawa, Wako, Saitama 351-0198 Japan