RIKEN Center for Emergent Matter Science Strong Correlation Interface Research Group
Group Director: Masashi Kawasaki (D.Eng.)
Being distinct from conventional semiconductors where single electron picture can explain their properties and device functionalities, correlated quantum materials exhibit exotic properties governed by electron-electron interaction. When dissimilar electronic states are faced at atomically controlled interfaces, their keen competition is expected to give gigantic responses to external stimuli. Also emerging field is to explore novel quantum transport in two-dimensional systems created at the interfaces of such materials. We aim at designing and controlling the interfacial properties to realize surpassing device performances in switches, sensors and photovoltaics to those of semiconductors.
Main Research Fields
- Interdisciplinary Science & Engineering
Related Research Fields
- Mathematical & Physical Sciences
- Oxide Electronics
- Topological Electronics
- Interface Engineering
- Quantum Transport
- Interfaces and Superlattcies
S. Inagaki, M. Nakamura, Y. Okamura, M. Ogino, Y. Takahashi, L. C. Peng, X. Z. Yu, Y. Tokura, and M. Kawasaki.:
"Heteroepitaxial growth of wide bandgap cuprous iodide films exhibiting clear free-exciton emission"
Appl. Phys. Lett., 118, 012103 (2021).
M. Uchida, T. Nomoto, M. Musashi, R. Arita, and M. Kawasaki.:
"Superconductivity in uniquely strained RuO2 films"
Phys. Rev. Lett., 125, 147001 (2020).
H. Hatada, M. Nakamura, M. Sotome, Y. Kaneko, N. Ogawa, T. Morimoto, Y. Tokura, and M. Kawasaki.:
"Defect tolerant zero-bias topological photocurrent in a ferroelectric semiconductor"
PNAS., 117, 20411 (2020).
K. Maruhashi, K. S. Takahashi, M. S. Bahramy, S. Shimizu, R. Kurihara, A. Miyake, M. Tokunaga, Y. Tokura, and M. Kawasaki.:
"Anisotropic quantum transport through a single spin channel in the magnetic semiconductor EuTiO3"
Adv. Mater., 32, 1908315 (2020).
M. Nakamura, H. Hatada, N. Ogawa, M. Sotome, Y. Tokura and M. Kawasaki.:
"Non-local photocurrent in a ferroelectric semiconductor SbSI under local photoexcitation"
Appl. Phys. Lett., 116, 122902 (2020).
S. Inagaki, M. Nakamura, H. Hatada, R. Nishino, F. Kagawa, Y. Tokura and M. Kawasaki.:
"Growth of visible-light-responsive ferroelectric SbSI thin films by molecular beam epitaxy"
Appl. Phys. Lett., 116, 072902 (2020).
K. Tanaka, J. Falson, Y. Kozuka, M. Uchida, D. Maryenko, J. T. Ye, Y. Iwasa, A. Tsukazaki, J. H. Smet, and M. Kawasaki.:
"Ballistic transport in periodically modulated MgZnO/ZnO two-dimensional electron systems"
Appl. Phys. Lett., 115, 153101 (2019).
S. Nishihaya, M. Uchida, Y. Nakazawa, R. Kurihara, K. Akiba. M. Kriener, A. Miyake, Y. Taguchi, M. Tokunaga, and M. Kawasaki.:
"Quantized surface transport in topological Dirac semimetal films"
Nat. Commun., 10, 2564 (2019).
K. S. Takahashi, H. Ishizuka, T. Murata, Q. Y. Wang, Y. Tokura, N. Nagaosa, and M. Kawasaki.:
"Anomalous Hall effect derived from multiple Weyl nodes in high-mobility EuTiO3 films"
Sci. Adv., 4, eaar7880 (2018).
D. Maryenko, A. McCollam, J. Falson, Y. Kozuka, J. Bruin, U. Zeitler, and M. Kawasaki.:
"Composite fermion liquid to Wigner solid transition in the lowest Landau level of zinc oxide"
Nat. Commun., 9, 4356 (2018).
Recent Research Results
Dec. 8, 2017
Solar cells with a quantum shift
Jul. 21, 2017
Flaws in zinc oxide films add magnetic twist
Sep. 2, 2016
Super-material holds a quantum surprise
May 29, 2015
Even steps to quantum computation
Oct. 24, 2014
Multiplying solar harvests with ‘correlated’ technology
Aug. 8, 2014
Boosting microelectronics with a little liquid logic
- Masashi Kawasaki
- Group Director
- Kei Takahashi
- Senior Scientist
- Masao Nakamura
- Senior Scientist
- Denis Maryenko
- Senior Scientist
- Jobu Matsuno
- Visiting Scientist
308, Frontier Research Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Email: m.kawasaki [at] riken.jp