Career History:

2022- present   Professor, Institute of Physics, Chinese Academy of Sciences

2007 - 2022    Senior Research Scientist, RIKEN

2004 - 2008    PRESTO Researcher, JST (Japan Science and Technology Agency)

2001 - 2007    Research Scientist, RIKEN

1999 - 2001    Assistant Professor, Graduate School of Arts and Sciences, the University of Tokyo


Research Interests:

Ultra-low temperature physics, Topological phenomena in superfluid 3He, Electrons floating on helium surface, Unconventional/topological materials at ultra-low temperatures


Selected Publications:

[1] Hiroki Ikegami and Yasunobu Nakamura, "Insulating phase in two-dimensional Josephson junction arrays investigated by nonlinear transport", to be published in Phys. Rev. B.


[2] Junseong Song, Sunghun Kim, Youngkuk Kim, Huixia Fu, Jahyun Koo, Zhen Wang, Gyubin Lee, Jouhahn Lee, Sang Ho Oh, Joonho Bang, Taku Matsushita, Nobuo Wada, Hiroki Ikegami, Jonathan D. Denlinger, Young Hee Lee, Binghai Yan, Yeongkwan Kim, and SungWng Kim, "Coexistence of Surface Superconducting and Three-Dimensional Topological Dirac States in Semimetal KZnBi”, Phys. Rev. X 112, 021065-1-10 (2021).


[3] Hiroki Ikegami and Kimitoshi Kono, “Review: Observation of Majorana Bound States at a Free Surface of 3He-B”, J. Low Temp. Phys. 195, 343-257 (2019).


[4] Raj Cosmic, Hiroki Ikegami, Zhirong Lin, Kunihiro Inomata, Jacob M. Taylor, Yasunobu Nakamura, “Circuit QED-based measurement of vortex lattice order in a Josephson junction array", Phys. Rev. B 98, 060501(R)-1-5 (2018).


[5] Hiroki Ikegami, Kitak Kim, Hyoungsoon Choi, Daisuke Sato, Kimitoshi Kono, and Yuriy P. Monarkha, “Anomalous Quasiparticle Reflection from the Surface of 3He-4He Dilute Solution”, Phys. Rev. Lett. 119, 195302-1-5 (2017).


[6] Masamichi Saitoh, Hiroki Ikegami, and Kimitoshi Kono, “Onset of Superfluidity in 3He Films”, Phys. Rev. Lett. 117, 205302-1-5 (2016).


[7] Hiroki Ikegami, Yasumasa Tsutsumi, and Kimitoshi Kono, “Chiral symmetry breaking in superfluid 3He-A", Science 341, 59-62 (2013).


[8] Hiroki Ikegami, Suk Bum Chung, and Kimitoshi Kono, “Mobility of Ions Trapped Below a Free Surface of Superfluid 3He”, J. Phys. Soc. Jpn. 82, 124607-1-12 (2013).


[9] Hiroki Ikegami, Hikota Akimoto, David G. Rees, and Kimitoshi Kono, “Evidence for Reentrant Melting in a Quasi-One-Dimensional Wigner Crystal”, Phys. Rev. Lett. 109, 236802-1-5 (2012).


[10] Hiroki Ikegami, Hikota Akimoto, and Kimitoshi Kono, “Melting of a quasi-one-dimensional Wigner crystal: Electrons on superfluid 4He in a narrow channel”, Phys. Rev. B 82, 201104(R)-1-4 (2010).  



Tel: 86-10-81259992

E-mail: hikegami@iphy.ac.cn