RESEARCH

The topics he studied include: thermal convection and chaos in helium superfluids, magnetism and superconductivity in Chevrel-phase and heavy fermion compounds, substitution effects in cuprate high-temperature superconductors, spin frustrations in spin ice and other compounds, and unconventional properties of a variety of other superconductors. In particular, his group discovered superconductivity in Sr₂RuO₄ in 1994 and has investigated unconventional superconductivity and metal–insulator transitions in various ruthenates. Currently, his main research interest is the exploration of the physics of topological quantum phenomena.

RFESEARCH IN THIS PROJECT

　As the leader of the Core Research A01 "Topological phase of strongly correlated substances", he will coordinate the research into topological superconductivity, topological semimetal states and topological magnetism in materials with strong interactions among the electrons (strongly-correlated materials). While research in topological quantum phenomena is progressing worldwide at a remarkable momenta, we are focusing particularly on research topics that utilize original materials originating in Japan and unique themes such as bulk topological superconductivity and topological spin liquids.

Under intimate collaborations with the adjunct members Shingo Yonezawa and Takahito Terashima, his group aims at the development of physics of strongly correlated topological phenomena mainly in transition-metal oxide materials including micro fabricated systems and junctions. In collaboration with other Core Research Projects, his group will investigate topological superconductivity of doped topological insulators and of 3D Dirac-electron materials as well.

Fig. 1: Transmission-Electron Microscope (TEM) image of the SrRuO₃/Sr₂RuO₄ interface

Fig. 2: Superconducing Micro Ring of Sr₂RuO₄

OTHERS

As an administrative member of this TMS project, he will contribute in establishing an international network on topological material science named "Topo-Q". He will assist the plans to hold alliance workshops with overseas partners and help promote researcher exchange programs "JREP" and "REP".

Public outreach activities are getting increasingly important for the TMS project. he hopes to convey the wonders of the topology in physical phenomena and quantum condensation phenomena such as superconductivity and superfluidity in a modern and easy-to-understand ways. He will also continue to extend science awareness activities using the 3D periodic table of the elements "Elementouch" that he invented.

EDUCATION

1979

B.Sc. in Physics, Kyoto University (Advisors: Akira Hirai and Takao Mizusaki)

1980

M.S. in Physics, University of California, San Diego

1984

Ph.D. in Physics, University of California, San Diego (Advisor: John Wheatley)

PROFESSIONAL EXPERIENCE

1984-1988

Research Associate, Associate Professor, Department of Physics,
Hiroshima University

1988-1989

Visiting Scientist, IBM Research, Rüschlikon (Zurich), Switzerland (Host: Georg Bednorz)

1989-1996

Associate Professor, Department of Physics, Hiroshima University

1996-2001

Associate Professor, Department of Physics, Kyoto University

2001-2006

Professor, International Innovation Center, and Department of
Physics, Kyoto University.

2006-Present

Professor, Department of Physics, Kyoto University

HONORS AND AWARDS

2000

Ryogo Kubo Memorial Award

2002

Japan IBM Science Award

2004

Thomson Scientific Research Front Award

2009

Bernd T. Matthias Prize

2010

Nishina Memorial Prize

2013

Medal with Purple Ribbon

SELECTION OF PUBLICATIONS

"Compact AC susceptometer for fast sample characterization down to 0.1 K"
S. Yonezawa, T. Higuchi, Y. Sugimoto, C. Sow, Y. Maeno,
Review of Scientific Instruments 86, 093903-1-8 (Sep. 2015).
DOI: 10.1063/1.4929871

"Ferromagnetic SrRuO₃ thin-film deposition on a spin-triplet superconductor Sr₂RuO₄with a highly conducting interface"
M. S. Anwar, Y. J. Shin, S. R. Lee, S. J. Kang, Y. Sugimoto, S. Yonezawa, T. W. Noh, Y. Maeno,
Applied Physics Express 8, 015502-1-5 (Dec. 2014).
DOI: 10.7567/APEX.8.015502

"Electric-field-induced metal maintained by current of the Mott insulator Ca₂RuO₄"
F. Nakamura, M. Sakaki, Y. Yamanaka, S. Tamaru, T. Suzuki and Y. Maeno,
Scientific Reports 3, 2536-1-6 (Aug. 2013).
DOI: doi:10.1038/srep02536

"First-order Superconducting Transition of Sr₂RuO₄"
S. Yonezawa, T. Kajikawa, and Y. Maeno,
Physical Review Letters 110, 077003-1-5 (Feb. 2013).
DOI: 10.1103/PhysRevLett.110.077003

"Evaluation of Spin-Triplet Superconductivity in Sr₂RuO₄"
Y. Maeno, S. Kittaka, T. Nomura, S. Yonezawa, K. Ishida,
Journal of Physical Society of Japan 81, 011009-1-29 (Jan. 2012).
DOI: 10.1143/JPSJ.81.011009

"Topological Competition of Superconductivity in Pb/Ru/Sr₂RuO₄ Junctions"
T. Nakamura, R. Nakagawa, T. Yamagishi, T. Terashima, S. Yonezawa, M. Sigrist, Y. Maeno,
Physical Review B 84, 060512(R)-1-4 (Aug. 2011).
DOI: 10.1103/PhysRevB.84.060512

"Higher-T_c Superconducting Phase in Sr₂RuO₄ Induced by Uniaxial Pressure"
S. Kittaka, H. Taniguchi, S. Yonezawa, H. Yaguchi, and Y. Maeno,
Physical Review B 81, 180510(R), (May 2010).
DOI: 10.1103/PhysRevB.81.180510

"High Resolution Polar Kerr Effect Measurements of Sr₂RuO₄: Evidence for Broken Time-Reversal Symmetry in the Superconducting State"
J. Xia, Y. Maeno, P. T. Beyersdorf, M. M. Fejer, and A. Kapitulnik,
Physical Review Letters 97, 167002-1-4 (Oct. 2006).
DOI: 10.1103/PhysRevLett.97.167002

"Determination of the Superconducting Gap Structure in All Bands of the Spin-Triplet Superconductor Sr₂RuO₄"
K. Deguchi, Z. Q. Mao, and Y. Maeno,
Journal of Physical Society of Japan 73, 1313-1321 (May 2004).
DOI: http://dx.doi.org/10.1143/JPSJ.73.1313

"The Superconductivity of Sr₂RuO₄ and the Physics of Spin-Triplet Paring"
A.P. Mackenzie and Y. Maeno,
Reviews of Modern Physics 75, 657-712 (April 2003).
DOI: 10.1103/RevModPhys.75.657

"Spin-Triplet Superconductivity in Sr₂RuO₄ Identified by ¹⁷O Knight Shift"
K. Ishida, H. Mukuda, Y. Kitaoka, A. Asayama, Z. Q. Mao, Y. Mori, and Y. Maeno,
Nature 396, 658-660 (Dec. 1998).
DOI: 10.1038/25315

"Enhancement of Superconductivity of Sr₂RuO₄ to 3 K by Embedded Metallic Microdomains"
Y. Maeno, T. Ando, Y. Mori, E. Ohmichi, S. Ikeda, S. NishiZaki, and S. Nakatsuji,
Physical Review Letters 81, 3765-3768 (Oct. 1998).
DOI: 10.1103/PhysRevLett.81.3765

"Time-Reversal Symmetry Breaking Superconductivity in Sr₂RuO₄"
G. M. Luke, Y. Fudamoto, K.M. Kojima, M.I. Larkin, J. Merrin, B. Nachumi, Y. J. Uemura, Y. Maeno, Z. Q. Mao, Y. Mori, H. Nakamura, and M. Sigrist,
Nature 394, 558-561 (Aug. 1998).
DOI: 10.1038/29038

"Superconductivity in a Layered Perovskite without Copper"
Y. Maeno, H. Hashimoto, K. Yoshida, S. Nishizaki, T. Fujita, J. G. Bednorz, and F. Lichtenberg,
Nature 372, 532-534 (Dec. 1994).
DOI: 10.1038/372532a0

"Substitution for Copper in a High-T_c Superconductor YBa₂Cu₃O_7-δ"
Y. Maeno, T. Tomita, M. Kyogoku, S. Awaji, Y. Aoki, K. Hoshino, A. Minami, and T. Fujita,
Nature 328, 512-514 (Aug. 1987).
DOI: 10.1038/328512a0

"Transition to Oscillatory Convection in a ³He-Superfluid- ⁴He Mixture"
Y. Maeno, H. Haucke, and J. C. Wheatley,
Physical Review Letters 54, 340-342 (Jan. 1985).
DOI: http://dx.doi.org/10.1103/PhysRevLett.54.340