Topological Quantum Phenomena in Condensed Matter with Broken Symmetries

Home > Members > Yukio TANAKA

Japanese

Member Profile

Yoshiteru Maeno

Yukio TANAKA

Professor, Department of Applied Physics, Nagoya University
Field of Specialty:
Theory of condensed matter physics
Topics of Research:
(D01) Theory of Topological Condensates
Specific Topics:
Theory of topological condensed matter

RESEARCH

I have been studying about theory of superconductivity. Especially, I have focused on the topic like tunneling effect, Josephson effect and proximity effect, where phase of the superconducting pair potential plays an important role. I have revealed the origin of the zero bias conductance peak in high Tc cuprate is the Andreev bound state. At the same time, I have been studying about microscopic theory of mechanism of unconventional superconductors. Based on these backgrounds, I have clarified recently that odd-frequency pairing is one of the important new direction in the field of condensed matter physics. Besides these topics, I am interested in non-centrosymmetric superconductors and topological insulators.

In this project, we want to study spin-triplet superconductors and non-centrosymmetric superconductors where topological edge state is generated. We want to clarify new quantum phenomena relevant to odd-frequency pairing and Majorana fermions. At the sametime, we would like to reveal new features of topological insulator. We hope the physics of topological quantum phenomena is activated thanks to this project.

EDUCATION

1990
Ph.D. (Physics), The University of Tokyo

PROFESSIONAL EXPERIENCE

1990-1995
Assistant, Faculty of Science, Niigata University
1995-1998
Assistant Professor, Graduate School of Science and Technology, Niigata University
1998-2007
Assistant Professor, Graduate School of Engineering, Nagoya University
2007-2012
Associate Professor, Graduate School of Engineering, Nagoya University
2012-
Professor, Graduate School of Engineering, Nagoya University

HONORS AND AWARDS

2000
Japan IBM Science Award
2005
Superconductivity Science and Technology Award

SELECTION OF PUBLICATIONS

"Theory of tunneling conductance and surface-state transition in superconducting topological insulators",
A. Yamakage, K. Yada, M. Sato, and Y. Tanaka,
Phys. Rev. B 85, 180509(R)-1-5 (2012).

"Evolution of edge States and Critical Phenomena in the Rashba Superconductor with Magnetization",
A. Yamakage, Y. Tanaka, and N. Nagaosa,
Phys. Rev. Lett. 108, 087003-1-5 (2012).

"Symmetry and Topology in Superconductors -Odd-Frequency Pairing and Edge States",
Y. Tanaka, M. Sato, N. Nagaosa,
J. Phys. Soc. Jpn. 81, 011013 1-34 (2012).

"Topology of Andreev bound states with flat dispersion",
M. Sato, Y. Tanaka, K. Yada, T. Yokoyama,
Phys. Rev. B 83, 224511-1-22 (2011).

"Manipulation of Majorana fermion, Andreev reflection and Josephson current on topological insulator", 
Y. Tanaka, T. Yokoyama, and N. Nagaosa,
Phys. Rev. Lett. 103, 107002 (2009).

"Anomalous Josephson effect between even- and odd-frequency superconductors",
Y. Tanaka, A. Golubov, S. Kashiwaya, and M. Ueda,
Phys. Rev. Lett. 99, 037005 (2007).

"Theory of the proximity effect in junctions with unconventional superconductors",
Y. Tanaka and A. Golubov,
Phys. Rev. Lett. 98, 037003 (2007).

"Circuit theory of unconventional superconductor junctions",
Y. Tanaka, Y.V. Nazarov, and S. Kashiwaya,
Phys. Rev. Lett, 90, 167003 (2003).

"Theory of tunneling spectroscopy of d-wave superconductors",
Y. Tanaka and S. Kashiwaya,
Phys. Rev. Lett. 74, 3451(1995).

PAGE TOP