RIKEN Center for Emergent Matter Science Strong Correlation Interface Research Group
Group Director: Masashi Kawasaki (D.Eng.)
Research Summary

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
Keywords
- Oxide Electronics
- Topological Electronics
- Interface Engineering
- Quantum Transport
- Interfaces and Superlattcies
Selected Publications
- 1.Y. Ohuchi, J. Matsuno, N. Ogawa, Y. Kozuka, M. Uchida, Y. Tokura, and M. Kawasaki.:
“Electric-field control of anomalous and topological Hall effects in oxide bilayer thin films”
Nat. Commun., 9, 213 (2018) - 2.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) - 3.S. Nishihaya, M. Uchida, Y. Nakazawa, M. Kriener, Y. Kozuka, Y. Taguchi, and M. Kawasaki.:
“Gate-tuned quantum Hall states in Dirac semimetal (Cd1-x Znx)3As2”
Sci. Adv., 4, eaar5668 (2018) - 4.K. S. Takahashi, H. Ishizuka, T. Murata, Q. 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) - 5.J. Falson, D. Tabrea, D. Zhang, I. Sodemann, Y. Kozuka, A. Tsukazaki, M. Kawasaki, K. von Klitzing, and J. H. Smet.:
“A cascade of phase transitions in an orbitally mixed half-filled Landau level”
Sci. Adv., 4, eaat8742 (2018) - 6.M. Nakamura, H. Hatada, Y. Kaneko, N. Ogawa, Y. Tokura, and M. Kawasaki.:
“Impact of electrodes on the extraction of shift current from a ferroelectric semiconductor SbSI”
Appl. Phys. Lett., 113, 232901-1-5 (2018) - 7.K. Yasuda, M. Mogi, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Kawasaki, F. Kagawa, and Y. Tokura.:
“Quantized chiral edge conduction on domain walls of a magnetic topological insulator”
Science, 358, 1311-1314 (2017) - 8.Y. Tokura, M. Kawasaki, and N. Nagaosa.:
“Emergent functions of quantum materials”
Nat. Phys., 13, 1056-1068 (2017) - 9.D. Maryenko, A.S. Mishchenko, M.S. Bahramy, A. Ernst, J. Falson, Y. Kozuka, A. Tsukazaki, N. Nagaosa, and M. Kawasaki.:
“Observation of anomalous Hall effect in a non-magnetic two-dimensional electron system”
Nat. Commun., 8, 14777 (2017) - 10.M. Nakamura, S. Horiuchi, F. Kagawa, N. Ogawa, T. Kurumaji, Y. Tokura, and M. Kawasaki.:
“Shift current photovoltaic effect in a ferroelectric charge-transfer complex”
Nat. Commun., 8, 281 (2017)
Recent Research Results
Dec. 8, 2017
Solar cells with a quantum shiftJul. 21, 2017
Flaws in zinc oxide films add magnetic twistSep. 2, 2016
Super-material holds a quantum surpriseMay 29, 2015
Even steps to quantum computationOct. 24, 2014
Multiplying solar harvests with ‘correlated’ technologyAug. 8, 2014
Boosting microelectronics with a little liquid logic
Related Links
Lab Members
Principal investigator
- Masashi Kawasaki
- Group Director
Core members
- Kei Takahashi
- Senior Scientist
- Masao Nakamura
- Senior Scientist
- Denis Maryenko
- Senior Scientist
- Jobu Matsuno
- Visiting Scientist
Contact Information
308, Frontier Research Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Tel: +81-(0)48-467-9604
Email: m.kawasaki [at] riken.jp