• Ionic-Nanoarchitectonics



    Various interface functions are achieved by control of ionic transport on the nanoscale.

  • Higher-integration Atomic Switch

    Higher-integration Atomic Switch


    High-density crossbar arrays lead to applications such as nonvolatile memories and brain-type devices composed of artificial synapses.

  • Junction(gapless)-type Atomic Switch

    Junction(gapless)-type Atomic Switch


    Memory devices showing various unique functions are realized in a metal/solid electrolyte/metal structure.

  • Ionic Decision-maker for AI Applications

    Ionic Decision-maker for AI Applications


    Ionic decision-maker utilizes ionic phenomena for learning and making optimum decisions based on previous experience.

  • Innovative transistors based on magnetically induced transport of ions

    Innovative transistors based on magnetically induced transport of ions


    Electric double layer is modulated by magnetically induced transport of ions, tuning electric conductance of two-dimensional hole gas at a diamond (100)/electrolyte interface.

  • Bandgap Tuning of Graphene by Redox Reaction

    Bandgap Tuning of Graphene by Redox Reaction


    In Situ and Non-Volatile Bandgap Tuning of Multilayer Graphene Oxide in an All-Solid-State Electric Double-Layer Transistor.

  • Chemical Soldering

    Chemical Soldering


    Single conjugated polymer chains can be connected to single molecules by controlling chain polymerization at the nanometer scale.

  • Creation of Single Molecule Devices Using Chemical Soldering

    Creation of Single Molecule Devices Using Chemical Soldering


    Single molecular devices, which could not be obtained by conventional methods, are created and new functions and superior performances are explored.

  • Functional Protein-inorganic Hybrid

    Functional Protein-inorganic Hybrid


    Biohybrid flowers are fabricated facially from silk protein sericin and copper phosphate. They are applied for water purification.

Creating innovative nanoionic devices that will change the world

Our group aims to create nanoionic devices, based on nanotechnology and solid-state ionics, which enable a variety of new features that cannot be achieved with conventional semiconductor devices. In concrete terms, we utilize surface nanoarchitectonic local ion transport to produce interesting nano-phenomena resulting from physical or chemical actions. Further, by utilizing the characteristics obtained, we create nanodevices that operate based on new principles. Based on the basic research into the operating principles of these new nanoionic device, we are actively pursuing research on their practical use through collaborative research with allied companies. In addition, we are investigating novel methods for constructing molecular nano-systems, in which single organic molecules and single conductive polymers are connected to each other, and we are also developing methods for measuring the functions of such molecular nano-systems. Through such activities, we aim to demonstrate functional expressions of such devices as single molecule transistors and nanowire sensors, and to construct ultimately miniaturized single molecule device circuitries.



recruit information

NIMS Internship Program

Our group welcomes undergraduate and graduate students who are interested in experiencing the cutting-edge research activities. Application for NIMS Internship Program 2019 (1st) is now open.

Postdoctoral researchers utilizing NIMS/public institutions recruitment systems

Our group welcomes those who will engage in the development of leading-edge nanoionic devices.

joint research groups utilizing various NIMS collaboration systems

Joint research activities will be carried out utilizing NIMS infrastructure.

Interested parties should direct enquiries to: TERABE.Kazuya=nims.go.jp (change '=' to '@').

Recent Topics

  • dr. okawa's paper selected as jjap spotlights

    A paper titled 'Observation of room temperature electronic localization through a single graphene layer on sapphire' has been selected as May 2019 Spotlights by JJAP (Japanese Journal of Applied Physics) [*]. JJAP selects and suggets a small number of articles with a high potential for caputuring the interest of researchers in the applied physics community. Click here to access the ARTICLE. . .

    Passing away of dr. okawa, MANA chief researcher

    It is with utmost sadness and sorrow that we announce the passing of Dr. Yuji Okawa, MANA Chief Researcher, on 1 August 2019 at the age of 55. Dr. Okawa had been a valued member of NIMS for years. Dr. Okawa will be missed and he will never be forgotten. May his soul rest in peace.

    dr. tsuchiya receives 2019 research grant from the murata science foundation

    The Murata Science Foundation Fiscal 2019 Research Grant Presentation was held at the Hotel Granvia Kyoto on July 19, 2019. Dr. Tsuchiya has been chosen as a recipient for his research project entitled "Investigation on charging mechanism of all-solid-state solid electric double layer devices" . . .

    the international conference on memristive materials, devices & systems (memrisys)

    Dr. Terabe gave an invited talk titled "Ionic Nanoarchitectonics for Creating Innovative Devices" at MEMRISYS 2019 held at the Internationales Congress Center in Dresden, Germany, from 8 to 11 July 2019. It has been announced that the next MEMRISYS 2020 will be held at the Tsukuba International Congress Center (EPOCHAL TSUKUBA), Ibaraki, Japan from 14 to 17 July, 2020 with us serving as an organizer. . .


    At the PGI Colloquium held at Forschungszentrum Jülich GmbH (FZJ) in Jülich, Germany, Dr. Terabe gave an invited talk titled "Solid-State-Ionic Nanoarchitectonics for the Development of Innovative Information Communication Devices"

    prof. paolo milani from university of milano gave a lecture at mana seminar

    Prof. Paolo Milani from University of Milano, Italy delivered a lecture entitled "Resistive switching and complex behavior in cluster-assembled nanostructured gold films" at the 650th MANA Seminar. After giving a lecture, Prof. Milani had a MANA lab tour, . . .

    NIMS Open House 2019 - Learn thoroughly about power of chemical elements

    NIMS Open House 2019 was held on Sunday, April 21, 2019 at NIMS Sengen-site, Namiki-site and Sakura-site. The Nanoionic Devices group had an experimental workshop entitled "What is Atomic Switch that aims for artificial intelligence (AI)?". The number of visitors exceeded 5,000, hitting a record high for the four straight year . . .

    invited talks given in shanghai and chongqing in china

    Dr. Terabe gave an invited talk titled "Nanoionics devices for artificial intelligence technology" at the Ceramic Interconnect and Ceramic Microsystems Technologies (CICMT 2019) held in Shanghai and another invited talk titled "Nano-Ionic Devices for Advanced Information and Communication technology"at the 14th Annual Conference of Engineering Ceramics of China held in Chongqing, China . . .

  • solid state ionics devices for super smart society - from fundamentals to applications in ict, ai and energy devices

    A symposium titled 'Solid state ionics devices for a super smart society - From fundamentals to applications in ICT, AI and energy devices' was held at the 79th JSAP Autumn Meeting, 2018 in Nagoya. Both Dr. Terabe/Group Leader and Dr. Tsuruoka/Principal Researcher got involved in organizing the seminar, and Dr. Tsuchiya/Senior Researcher gave an invited talk. . .

    press release: invention of ionic decision-maker capable of self-learning

    We have invented an ionic device, termed an ionic decision-maker, capable of quickly making its own decisions based on previous experience by using changes in ionic/molecular concentrations. This invention may lead to the development of novel artificial intelligence (AI) systems that process digital information with the use of software.. . .

    Mr. Daiki Etoh (NIMS Junior Researcher/ Tokyo University of Science Graduate School) receives Excellent Poster Award

    Mr. Etoh has been awarded an "Excellent Poster Award" by Prof. Junichi Kawamura, chairman of The Solid State Ionics Society of Japan, at the 14th Solid State Ionics Seminar held at the Yuzawa New Otani Hotel from September 2 to 4, 2018. Mr. Etoh presented a poster titled "Proton Conduction of Yttria Stabilized ZrO2 Thin Films Controlled by Oxygen Pressure in Pulse Laser Deposition process". . .

    Prof. Wilfred G. van der Wiel from University of Twente visit our group

    Prof. Wilfred G. van der Wiel from University of Twente (The Netherlands) came to visit our group. He delivered a lecture entitled "Evolving functionality in disordered nanomaterial networks" at the 630th MANA Seminar . . .

  • Prof. Xin Guo and Assoc Prof. Rui Yang from Huazhong University of Science and Technology visit our group

    Prof. Xin Guo and Assoc Prof. Rui Yang from the School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST) came to visit our group. They gave lectures at the 623rd MANA Seminar entitled 'Oxide-Based Second-Order Memristive Intelligent Devices with Neurological and Psychological Functions' and 'Artificial Synapses and Neurons Based on Second-order Memristive Devices' respectively. . .

    Mr. Makoto Takayanagi (NIMS Junior Researcher) receives Hiroshi Harashima Academic Award

    Mr. Takayanagi has been awarded the Hiroshi Harashima Academic Award for his research entitled "Research on World's Fastest All-solid Electric Double Layer Transistor with the use of Li-ion electrolytes". The award is given to excellent young researchers currently enrolled in graduate schools in the field of electric/electronic information, with the aim of fostering those who forge the future of science . . .

    NIMS Open house 2018

    A NIMS Open House 2018 was held at the Sengen, Namiki and Sakura sites. The Nanoionic Devices group had an experimental workshop entitled "What is Atomic Switch that aims for artificial intelligence (AI)?". There were more visitors than we expected and NIMS junior researchers played an active role in the workshop . The total number of visitors rose to 4,783, hitting a record high for the third straight year . . .

    press release: Unexpected metal-insulator transition achieved by control of chemical disorder

    Unexpected metal-insulator transition in thick Ca1-xSrxVO3 film was achieved by control of chemical disorder. The technique is useful for the development of novel nonvolatile memory . . .

  • the 28th tsukuba prize prize AWARD ceremony held - commemorative lecture given by dr. terabe

    The 28th Tsukuba Prize prize award ceremony took place at the Tsukuba International Congress Center. Dr. Terabe, Prof. Hasegawa (Waseda University) and Prof. Aono were awarded the Prize and Dr. Terabe gave a commemorative lecture . . .

    article appears in the Nikkei Online Edition and the Nikkei Sangyo Shimbun Print Edition

    Dr. Terabe was interviewed by the Nihon Keizai Shimbun for an article that appeared in the Nikkei Online Edition and the Nikkei Sango Shimbun Print Edition. In acknowledgment of recent movements toward the practical use of the Atomic Switch, the article reports on the history of its technological innovation, the status of current development work, and the direction of future research on the device . . .

    dr. kazuya terabe, MANA pi and dr. masakazu aono, executive advisor win the tsukuba prize 2017

    It was announced by the Science and Technology Promotion Foundation of Ibaraki that the 28th Tsukuba Prize will be awarded to Dr. Terabe, MANA Principal Investigator (PI), Dr. Masakazu Aono, Executive Advitsor and Prof. Tsuyoshi Hasegawa of the Waseda University. The Award Ceremony will be held on November 21, 2017 at the Tsukuba International Congress Center, Tsukuba, Japan . . .

    press release: innovative transistors operated by magnetically induced movement of ions

    We have succeeded in developing a transistor in which an electrical conductance is tuned by an ionic movement induced by a magnetic field, instead of an electric field. The transistor - which does not require the application of voltage to operate - is potentially applicable to the development of energy-efficient information and communications devices with new functions . . .

  • International Symposium on THE Atomic Switch: Invention, Practical Use and Future Prospects

    The atomic switch, which was developed in 2001 and jointly studied with the NEC Corporation with support from JST and MEXT, has been put to practical use as the ‘NEC AtomSW-FPGA’. At the symposium, it was explained that the NEC AtomSW-FPGA will be used in space satellites and that applications of the atomic switch are evolving into new, highly functional apparatus such as brain-type devices . . .

    Press Release: Various Organic Transistor Functions Created through Optical Drawing

    In a world's first, we have succeeded in drawing one-dimensional transistor channels by scanning ultraviolet (UV) and visible (VIS) laser beams on thin films of photochromic molecules. These molecules can switch back and forth between one type of isomer that acts like an insulator and another type of isomer that acts like a semiconductor when they are exposed alternately to UV and VIS light. Based on this property, our technique enables transistor channels to be re-written and their conductivity to be controlled, which opens up new possibilities for the development of optically reconfigurable, low-dimensional organic transistor circuits . . .

    G7 Science & Technology Ministers visit to NIMS

    A G7 Science & Technology Ministers Meeting was held in Tsukuba, Ibaraki. Upon their visit to NIMS, Dr. Terabe/Mana Principal Investigator (PI) gave a presentation to the Ministers on the ‘Atomic Switch’, which will bring innovation to computers . . .

    EsTablishment of new Nanoionic Devices Group

    Based on the NIMS's 4th Mid- to Long- Term Plan (4.1.2017 – 3.31.2024), the former Atomic Electronics, Nanoionic Devices and Nano-system Organization groups were integrated to form the new Nanoionic Devices Group.

  • Press Release: Low-Current, Highly Integrable Spintronics Device Developed

    An all-solid-state redox device, composed of Fe3O4 thin film and Li+ ion conducting solid electrolyte, was fabricated for use in tuning magnetization and magnetoresistance (MR), which are key factors in the creation of high-density magnetic storage devices . . .

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