KenIchiro Imura, Dr.
Email: imura[at]hiroshimau.ac.jp
Research field: condensedmatter physics, theory
Current research topics: topological insulators and superconductors, Weyl semimetals
Professional activities:
Awards

Web of Science, “Highly Cited Article” award
for
by
Koji Kobayashi, Tomi Ohtsuki, KenIchiro Imura and Igor F. Herbut,
See also,
AdSM news and topics.

Journal of the Physical Society of Japan,
Award for top 10 articles highly cited in 2012
that were published in 2011
for
by
Ai Yamakage, Kentaro Nomura, KenIchiro Imura and Yoshio Kuramoto,
See also,
AdSM news and topics.

Papers of Editors' Choice by JPSJ Editorial Board:
for
''Josephson Current through a Planar Junction of Graphene''
by
Invited talks

“From topological insulators to densityofstate scaling”
@
CMSI,
ISSP, Kashiwa, March 7, 2016.

"Thin film topological insulators: bulkedge correspondence, dimensional crossover
and superlattice generalization,"

"Delocalization in disordered topological insulators and related systems,"

"Protection of the surface states in topological insulators: Berry phase perspective,"

“Stability of the topologicalinsulator surface states: Berry phase perspective,"

"Spin connection on curved surfaces of the topological insulator",

"Spintosurface locking in gapped and gapless topological phases",
Students at AdSM (20156)
 Doctor course
 Master course
 Undergraduate course
B4: Tomoya Matsuoka
B4: Tatsuya Kiriki
Past titles of doctor thesis:
2016
Yukinori Yoshimura: "Theoretical study on the surface states of topological insulators"
Past titles of master thesis:
2014
Mayuko Okamoto: "Theory of finitesize effects in topological insulator nanostrcures”
Akihiko Matsumoto: "Theory of perfectly conducting channels in topological insulator nanostructures”
2013
Yukinori Yoshimura: "Theory of the spin connection for topological insulator surface states"
Past titles of undergraduate thesis:
2016
Tomoya Matsuoka: “Theory of anisotropic topological insulator: exploring new topological phases”
Tatsuya Kiriki: “Wavepacket dynamics on the surface of strong and weak topological insulators”
2015
Wataru Onishi: “Dimensional crossover of topological properties in nanoribbon systems”
2014
Shunsuke Iwasaki: “Bulkboundary correspondence in gapless systems: case of graphene and related systems"
2013
Kai Shinhara: “Bulkboundary correspondence in gapless systems: case of graphene and related systems"
Koutaro Nakagama: "1D Topological insulator: a model for describing topological insulator nanofilms"
2012
Mayuko Okamoto: “On the surface states of 3D weak and strong topological insulators”
Akihiko Matsumoto: “Theory of topological insulator nanostructures”
2011
Takuya Matsumoto: "Spindependent electromagnetic phenomena in topological insulators"
Publications
Google Scholar Citations
Thomson Reuters Researcher ID
Published (since 2005)

"Dimensional crossover of transport characteristics in topological insulator nanofilms"
Preprint: available at
arXiv:1409.1707.

"Manipulating quantum channels in weak topological insulator nanoarchitectures"
Preprint available at
arXiv:1412.3897.

"Noninvasive Metallic State"

"Engineering Dirac electrons emergent on the surface of a topological insulator"
Preprint available at
arXiv:1412.4317.

"Characterizing the weak topological properties: Berry phase point of view"
Preprint available at
arXiv:1405.4842.

"Onedimensional topological insulator: a model for studying finitesize effects in topological insulator thin films"
Preprint available at
arXiv:1401.2583.

"Density of states scaling at the semimetaltometal transition in threedimensional
topological insulators"
“Web of Science, Highly Cited Article.”
Preprint available at
arXiv:1308.3953.

"Perfectly conducting channel on the dark surface of weak topological insulators"
Preprint available at
arXiv:1303.0661.

"Symmetry protected weak topological phases in a superlattice"
Preprint available at
arXiv:1304.6200.

"Unified description of Dirac electrons on a curved surface of topological insulators"
Preprint available at
arXiv:1303.2179.

"Disordered weak and strong topological insulators"
Preprint available at
arXiv:1210.4656.

"Criticality of the metaltopological insulator transition driven by disorder"
Preprint available at
arXiv:1211.5026.

"Protection of the surface states in topological insulators: Berry phase perspective"
Preprint available at
arXiv:1211.2088.

''Spinorbit effects in graphene pn junction''

''Z2classification of localization properties in graphene''

''Finitesize energy gap in weak and strong topological insulators''
Preprint available at
arXiv:1208.0654.

''Spherical topological insulator''
Preprint available at
arXiv:1205.4878.

Topological insulator "nanotubes"

"Stationary Josephson effect in ballistic graphene junctions: effects of inhomogeneous carrier density"

"Z2 Topological Anderson Insulator"

"Quasiclassical Theory of the Josephson Effect in Ballistic Graphene Junctions"
Preprint available at
arXiv:1208.3264.

"Dirac electrons on a sharply edged surface of topological insulators"
Preprint available at
arXiv:1208.1571.

''Perfectly conducting channel and its robustness in disordered carbon nanostructures''
Preprint available at
arXiv:1206.6234.

''Majorana bound state of a Bogoliubovde GennesDirac Hamiltonian in arbitrary dimensions''
Preprint available at
arXiv:1107.5629.

''Spin Berry phase in the Fermi arc states''
Preprint available at
arXiv:1109.3243.

''Spin Berry phase in anisotropic topological insulators''
Preprint available at
arXiv:1108.0522

''Weak topological insulator with protected gapless helical states''
Preprint available at
arXiv:1103.1430.

''DisorderInduced Multiple Transition involving Z2 Topological Insulator''
“JPSJ 2012 Highly Cited Article.”
Preprint available at
arXiv:1011.5576.

''Josephson Current through a Planar Junction of Graphene''
“JPSJ Paper of Editor's Choice.”
Preprint available at
arXiv:1105.2600.

''Interfacial charge and spin transport in Z2 topological insulators''
Preprint available at
arXiv:1009.2842.

''Flat edge modes of graphene and of Z2 topological insulator''

''Analytic Theory of Edge Modes in Topological Insulators''
Preprint available at
arXiv:1008.0481.

''Zigzag edge modes in a Z2 topological insulator: Reentrance and completely flat spectrum''
Preprint available at
arXiv:1004.5019.

''Weak localization properties of graphene with intrinsic and Rashba spinorbit couplings''

''Klein tunneling in graphene under substrate electric field''

''Antilocalization of graphene under the substrate electric field''
Preprint available at
arXiv:0904.1676.

''Spinorbit effects in a graphene bipolar pn junction''
Preprint available at
arXiv:0906.0775.

''Weak localization properties of doped Z2 topological insulator''
Preprint available at
arXiv:0907.5051.

''Colossal spin fluctuations in a molecular quantum dot magnet with ferromagnetic electrodes''
Preprint available at
arXiv:0803.3058.

''Quantum Hall effect in bilayer and multilayer graphene with finite Fermi energy''
Preprint available at
arXiv:0804.4599.

''Numerical study of transport through a single impurity in a spinful Tomonaga–Luttinger liquid''
Preprint available at
arXiv:0710.3474.

''Full counting statistics for molecular spintronics''

''Full counting statistics for transport through a molecular quantum dot magnet''
Preprint available at
arXiv:condmat/0612052.

"Characterization of twodimensional fermionic insulating states"
Preprint available at
arXiv:0706.4258.

"Topological currents in ferromagnets and related systems: from the viewpoint of wavepacket dynamics"

"Electronelectron interactions in a onedimensional quantumwire spin filter"
Preprint available at
arXiv:condmat/0501145.

"Noncommutative geometry and nonAbelian Berry phase in the wavepacket dynamics of Bloch electrons"
Preprint available at
arXiv:condmat/0411105.
Unpublished

"(De)confinement of supercurrent in Z_2 Topological Insulators"