Mesoscopic Materials Science Laboratory

Staff & Contact

Educational Staff	Adjunct Prof. Yasuyuki Naito Adjunct Prof.Hiroyuki Tanaka Adjunct Associate Prof. Hiromasa Tamaki
Contact	TEL: +81-743-72-6196
URL	https://mswebs.naist.jp/LABs/panasonic/top/top.html

Education and Research Activities in the Laboratory

We aim to cultivate researchers who will carry out investigations on new physical phenomena and devices at the mesoscopic scale, and who will promote interdisciplinary research and open up new research areas. In the master’s program, we first provide students with a basic education in order for them to grasp the reasons why our research is necessary for society, and why research in science and technology is essential for the development of humankind. Then, based on this education, students participate in our research activities in mesoscopic and nano fields, experiencing the joy of new discoveries and skilled manufacturing through experiments. Thus, we nurture researchers who can take on basic responsibilities in the development of new science and technology.

In the doctoral program, we not only provide guidance on specific research themes but also clarify the difference between science and engineering, thus providing students with adequate guidance so that they can, in a balanced manner, utilize both a scientific mindset that leads to paradigm shifts, and engineering knowledge that serves to realize scientific ideas.

Research Themes

We conduct research on exotic devices utilizing new physical phenomena in the mesoscopic region that take advantage of thin-film technology. Specifically, we are conducting research on novel energy conversion devices using strongly-correlated electronic materials and/or solid-state iontronics materials.

1. Strongly correlated electronic materials (Fig. 1)

Research of novel devices utilizing cross-correlated phenomena

2. Solid-state iontronics materials (Fig. 2)

Search for new phenomena using electric-double-layer derived in ion-conducting thin films

Fig. 1 A conceptual illustration of strongly correlated electronic materials and the layer-controlled thermoelec¬tric thin film structure

Fig. 2 A conceptual illustration of a solid-state iontronics device made of ion-conducting epitaxial thin film

Recent Research Papers and Achievements

T. Asano, Y. Kaneko, A. Omote, H. Adachi, and E. Fujii, “Conductivity modulation of gold thin film at room temperature via all-solid-state electric-double-layer gating accelerated by nonlinear ionic transport”, ACS Appl. Mater. Interfaces 9, 5056-5061 (2017).
Y. Tanaka, S. Okamoto, K. Hashimoto, R. Takayama, T. Harigai, H. Adachi, and E. Fujii, “High electromechanical strain and enhanced temperature characteristics in lead-free (Na,Bi)TiO₃-BaTiO₃ thin films on Si substrates”, Sci. Rep. 8, 7847 (2018).
K. Umeda, M. Uenuma, D. Senaha, J. C. Felizco, Y. Uraoka, and H. Adachi, “Amorphous thin film for thermoelectric application”, J. Phys.: Conf. Ser. 1052, 012016 (2018).