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Tsuneya Ando | ando |
1-34B | +81-3-5734-2072/2719 |
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Tsuneya Ando | ando |
1-34B | +81-3-5734-2072/2719 |
| Affiliation | Department of Physics, Tokyo Institute of Technology |
| Address | 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan |
| Telephone | +81-3-5734-2072 (2719) |
| Fax | +81-3-5734-2739 (2072) |
1.2 Former Members and Colaborators
| Doctor Course |
Takuma Tsuchiya (FY1990, JAIST) Hiroyuki Tamura (FY1992, NTT Basic Research Laboratory) Tatsuo Suzuki (FY1993, Tokyo Metropolitan College of Aeronautical Engineering) Hiroshi Ajiki (FY1995, Osaka University) Seiji Uryu (FY1997, RIKEN) Kenich Asano (FY1998, Department of Physics, Osaka University) Hajime Matsumura (FY2000, Sony Central Research Laboratory) Tatsuya Yaguchi (FY2002, Nissan) Hiroshi Tsukahara (FY2007, AIST) Tomoaki Kaneko (FY2008, AIST) Masatsura Igami |
| Master Course |
Tomoaki Yoshioka (FY2001, Fuji Xerox) Hideaki Sakai (FY2002, NTT) Koichi Akimoto (FY2004) Hiroshi Tsukahara (FY2004) Junpei Terada (FY2004) Kohta Ishikawa (FY2005) Yoshiya Ogawa (FY2005) Tomoaki Kaneko (FY2005) Katsuyuki Arii (FY2006) Tatsuya Morikawa (FY2006) Masashi Yamamoto (FY2007) Toshiyuki Fukuzawa (FY2008) Atsushi Toyoda (FY2009) |
| Undergraduate Course |
Satoshi Tanaka (FY2002) Yoshiya Ogawa (FY2003) Kentaro Watanabe (FY2003) Katsuyuki Arii (FY2004) Tatsuya Morikawa (FY2004) Toru Kajiura (FY2005) Masashi Yamamoto (FY2005) Toshiyuki Fukuzawa (FY2006) Kohei Goto (FY2006) Atsushi Toyoda (FY2007) Yasunori Arimura (FY2008) Masaki Noro (FY2008) |
| Postdoc |
Seiji Uryu (Researcher, Osaka Prefecture University) Yoichi Asada (JSPS Postdoc, April 2005 -- September 2006) |
| Research Associates |
Masahito Ueda (now at Department of Physics, University of Tokyo) Hiori Kino (now at University of Tokyo) Hidekatsu Suzuura (now at Hokkaido University) Seiji Uryu (now at Iwate University) Mikito Koshino (now at Tohoku University) |
| Guest Professors |
Riichiro Saito (now at Physics Department, Tohoku University) |
| Overseas Guests |
N. A. Viet ( ) N. H. Shon ( ) Cao Huy Thien (November 2001 - April 2002) Yisong Zheng (October 2000 - September 2002, now at Jilin Universiy) Ngo Van Thanh (March 2008 - September, 2008, Institute of Physics, Vietnamese Academy of Science and Technology) |
| Overseas Students |
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| Guests |
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Two-dimensional systems with superb quality can be achieved at semiconductor heterostructures. Further, recent development in lithography technology has enabled the fabrication of quantum structures such as quantum wires, dots, antidots, etc. They are usually called mesoscopic systems since their dimension is much larger than microscopic scale but much smaller than microscopic scale. In such man-made low dimensional systems, quantum effects as well as those of many-body electron-electron interactions manifest themselves directly in transport phenomena.
The major aim of the research is to clarify quantum and many-body effects on transport and optical phenomena in such systems. Some examples of the topics investigated so far include ballistic transport in quantum point contacts in the presence of a magnetic field, conductance fluctuations, quantum wires and their response to external fields, quantum Hall effect and edge states, dynamics of tunneling across mesoscopic junctions, quantum effects and chaos in antidot lattices, the breakdown of Kohn's theorem in quantum cyclotron resonance, etc.
Carbon nanotubes are a cylinder consisting of a few two-dimensional graphite sheets and can be either a one-dimensional semiconductor or metal depending on their structure. Electronic properties of carbon nanotubes are also currently one of major subjects of an intensive study.
Research Subjects:
Quantum transport in low dimensional systems
Quantum Hall effect
Electronic properties of carbon-based new materialsPublished Articles on Research Topics
2003
2000
1997
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A group seminar is held very two weeks. The followings are the list of seminars since 1998 (* currently group only).
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The followings are the list of international conferences and workshops where papers are presented (since 1998).
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The followings are the list of recent preprints (since 1998). Most of them are available in a pdf format.
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The followings are the list of publications since 1971.
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The followings are the list of Doctor and Master theses of the former graduate students in the group.5.1 Doctor Thesis
| Tomoaki Kaneko | Spin relaxation in quantum wires | 2009 |
| Hiroshi Tsukahara | Electronic properties of disordered quantum wire array | 2008 |
| Tatsuya Yaguchi | Electronic states and topology in carbon nanotube caps | 2003 |
| Hajime Matsumura | Topology and conductance of nanotube network | 2001 |
| Kenichi Asano | Dynamical properties of quantum Hall systems | 1999 |
| Seiji Uryu | Antidot lattices in magnetic fields | 1998 |
| Hiroshi Ajiki | Carbon nanotubes in magnetic fields | 1996 |
| Tatsuo Suzuki | Electronic states of quantum wires in high magnetic fields (in Japanese) | 1994 |
| Hiroyuki Tamura | Mesoscopic phenomena in quatum wires | 1993 |
| Takuma Tsuchiya | Theory of electron-phonon interaction in semiconductor superlattice | 1991 |
| Shoji Wakahara | Theory of hot-electron transport in string magnetic fields | 1991 |
| Satoshi Ishizaka | Electron transport in antidot arrays | 1999 |
| Masaki Noro | Conductivity and diamagnetism of graphene with long range scatterers (in Japanese) | 2011 |
| Yasunori Arimura | Orbital diamagnetism of graphene in nonuniform magnetic field (in Japanese) | 2011 |
| Atsushi Toyoda | Theory of electron scattering by lattice defects in graphene (in Japanese) | 2010 |
| Toshiyuki Fukuzawa | Theory of Hall effect in graphene | 2009 |
| Masashi Yamamoto | Electric and magnetic response and distribution of associated fields in carbon nanotubes (in Japanese, Selected as a Best Master Thesis) | 2008 |
| Katsuyuki Arii | Dynamical spin-Hall conductivity in a two-dimensional system (in Japanese) | 2007 |
| Tatsuya Morikawa | Zero-field spin splitting in two-dimensional systems at semiconductor heterostructure (in Japanese) | 2007 |
| Kohta Ishikawa | Softening of optical phonon in carbon nanotubes (in Japanese) | 2006 |
| Yoshiya Ogawa | Effects of multiple interferences and inelastic scattering in Aharonov-Bohm ring with a quantum dot (in Japanese) | 2006 |
| Tomoaki Kaneko | Spin relaxation in two-dimensional systems with spin-orbit interaction (in Japanese) | 2006 |
| Koichi Akimoto | Destruction of perfect conducting channel in metallic carbon nanotubes (in Japanese) | 2005 |
| Hiroshi Tsukahara | Pseudo-band-structure and transport in disordered quantum-wire arrays (in Japanese) | 2005 |
| Junpei Terada | Many-body effects in spin-polarized two-dimensional electron gas (in Japanese) | 2005 |
| Hideaki Sakai | Many-body effects on band structure in carbon nanotubes | 2003 |
| Tomoaki Yoshioka | Electronic states in BCN nanotubes | 2002 |
| Tatsuya Yaguchi | Electronic states of capped nanotubes | 2000 |
| Hajime Matsumura | Conductance of carbon nanotube junctions | 1998 |
| Takuji Seri | Transport properties of carbon nanotubes in magnetic fields | 1997 |
| Kenichi Asano | Optical response of quantum Hall systems | 1996 |
| Seiji Uryu | Electronic states and conductivity of antidot lattices | 1995 |
| Hiroshi Ajiki | Electronic states of carbon nanotubes | 1993 |
| Hiroyuki Tamura | S matrix formalism of conductance fluctuation in quantum wires | 1990 |
| Takuma Tsuchiya | Phonon modes in semiconductor superlattices (in Japanese) | 1988 |
| Shoji Wakahara | Matching conditions of electron wave functions at semiconductor heterointerfaces (in Japanese) | 1987 |
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Nothing, currently.
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