Members Profile

Rikizo Yano

Rikizo Yano

Researcher, National Institute of Advanced Industrial Science and Technology

host researcher:
B01 Satoshi Kashiwaya
2016/10/01- (Research Group PD)

E-mail : yano-rikizo[at]


In my Ph.D. study, I explored novel functional materials using single crystals, considering the broken symmetry of materials as a strategy. The discovery of new novel materials suitable for various measurements triggers explosive studies and rapid development in the field, in particular, the topological materials science.

On the other hand, the combination of materials also leads to unique electronic functionalities and phenomena which are difficult or impossible to emerge in an independent material. The proximity effect and the tunneling effect in superconductors are good examples and induce unique electronic states and many important phenomena such as the Josephson effect. Owing to the proximity effect in a topological material, it may be possible to actually measure particles that have only been theoretically hypothesized in elementary particle physics but never observed, such as the Majorana fermion (fermion that is its own antiparticle) and the anyon (particle identified by several exchange operations). Existence of these hypothetical particles leads to not only innovative development in physics, but also pioneering applications of new-type quantum computations.

To this end, we plan to fabricate promising junctions of new topological materials discovered in the former group I used to belong to, and to perform phase sensitive measurements established by the present group. I am convinced that this collaboration should bring grate success and contribute to this field.


Bachelor of Engineering, Dept. Applied Physics and Physico-Informatics, Keio University
Master of Engineering, Innovative and Engineered Materials, Tokyo Institute of Technology
Ph.D (Science), Innovative and Engineered Materials, Tokyo Institute of Technology


Research Fellow of Japan Society for the Promotion of Science
Postdoctoral Researcher, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
Researcher, Department of Applied Physics, Nagoya University


"Crystal Growth and Properties of ACrX2 (A = Cu, Ag; X = S, Se) without a Secondary Phase"
Rikizo Yano and Takao Sasagawa,
Crystal Growth and Design 16, 5618-1-6 (Sep. 2016).
DOI: 10.1021/acs.cgd.6b00037

"Thermoelectric Properties in Single Crystals of Non-stoichiometric Compounds AgxCr2+y(S,Se)4 (x ~ 0.74, y ~ 0.42)"
Rikizo Yano and Takao Sasagawa,
Science of Advanced Materials, 8, 2077-2081 (Nov. 2016).

"Unusual Superconducting Proximity Effect in Magnetically Doped Topological Josephson Junctions"
Rikizo Yano, Masao Koyanagi, Hiromi Kashiwaya, Kohei Tsumura, Hishiro T. Hirose, Yasuhiro Asano, Takao Sasagawa, and Satoshi Kashiwaya,
arXiv:1805.10435 (Submitted to PRB).