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Sadashige Matsuo

Sadashige Matsuo

Associate Professor, Department of Applied Physics, Hokkaido University

Specific
Topics:
Spin-dependent electron transport on junctions of two-dimensional topological insulator and superconductor

E-mail : matsuo[at]ap.t.u-tokyo.ac.jp

RESEARCH

My previous research subjects are related to Dirac electron systems such as quantum interference effect on topological insulator Bi2Se3 and electron partition dynamics on pn junction of graphene in quantum Hall regime. Now I focus on electron transport on superconducting junctions and its topological natures.

In this project, we intend to experimentally study electron transport on junctions of two-dimensional topological insulator and superconductor. We will clarify roles of spin in the observed phenomena and contribute to establish physics of the Majorana Fermion.

EDUCATION

2009
B.S. in Physics, Kyoto University
2011
M.S. in Physics, University of Tokyo
2014
Ph.D. in Chemistry, Kyoto University

PROFESSIONAL EXPERIENCE

2011
-2014 RA, Kyoto University
2014
Research Assistant, Department of Physics, Osaka University
2014
Researcher, Department of Physics, Osaka University
2014-Present
Assistant Professor, Department of Applied Physics, University of Tokyo

SELECTION OF PUBLICATIONS

"Weak Antilocalization and Conductance Fluctuation in a Sub-micrometer-sized Wire of Epitaxial Bi2Se3"
Sadashige Matsuo, Tomohiro Koyama, Kazutoshi Shimamura, Tomonori Arakawa, Yoshitaka Nishihara, Daichi Chiba, Kensuke Kobayashi, Teruo Ono, Cui-Zu Chang, Ke He, Xu-Cun Ma, and Qi-Kun Xue,
Physical Review B 85, 075440-1-6 (Feb. 2012).
DOI: 10.1103/PhysRevB.85.075440

"Experimental proof of universal conductance fluctuation in quasi-one-dimensional epitaxial Bi2Se3 wires"
Sadashige Matsuo, Kensaku Chida, Daichi Chiba, Teruo Ono, Keith Slevin, Kensuke Kobayashi, Tomi Ohtsuki, Cui-Zu Chang, Ke He, Xu-Cun Ma, and Qi-Kun Xue,
Physical Review B 88, 155438-1-6 (Oct. 2013).
DOI: 10.1103/PhysRevB.88.155438

"Conductance Fluctuation and Weak Antilocalization in Epitaxial Bi2Se3"
Sadashige Matsuo, Tomohiro Koyama, Kazutoshi Shimamura, Tomonori Arakawa, Yoshitaka Nishihara, Daichi Chiba, Kensuke Kobayashi, Teruo Ono, Cui-Zu Chang, Ke He, Xu-Cun Ma and Qi-Kun Xue,
AIP Conference Proceedings 1566, 193 (2013).
DOI: 10.1063/1.4848351

"Parity effect of bipolar quantum Hall edge transport around graphene antidots"
Sadashige Matsuo, Shu Nakaharai, Katsuyoshi Komatsu, Kazuhito Tsukagoshi, Takahiro Moriyama, Teruo Ono, Kensuke Kobayashi,
Scientific Reports 5, 11723-1-8 (Jun. 2015).
DOI: 10.1038/srep11723

"Edge mixing dynamics in graphene p–n junctions in the quantum Hall regime"
Sadashige Matsuo, Shunpei Takeshita, Takahiro Tanaka, Shu Nakaharai, Kazuhito Tsukagoshi, Takahiro Moriyama, Teruo Ono, Kensuke Kobayashi,
Nature Communications 6 8066-1-6 (Sep. 2015).
DOI: 10.1038/ncomms9066