Quantum Solid State Physics Research Group
studies quantum correlated phenomena in semiconductor nanostructures.
Our topics include spin and charge dynamics in quantum dots formed in GaAs, Si or carbon based materials,
electric properties of two-dimensional systems in GaAs/AlGaAs or Si/SiO2 heterostructures and
the characterization of semiconductor surfaces using low-temperature scanning probe microscopies.
Facilities we use include molecular beam epitaxy, electron beam lithography,
low-temperature scanning tunnel microscopy with MBE chamber systems and several cryostats.
News and recent selected publications
16/5/2013, "Intrinsic and extrinsic origins of low-frequency noise in GaAs/AlGaAs Schottky-gated nanostructures"
Kenichi Hitachi, Takeshi Ota, and Koji Muraki,
Appl. Phys. Lett. 102, 192104 (2013).
1/4/2013, New internship student: Shunichi Matsumoto
1/4/2013, New member: Hiroshi Irie (moved from spintronics group)
1/4/2013, New member: Hiroyuki Tamura (moved from spintronics group)
16/12013, "Plasmon transport in graphene investigated by time-resolved electrical measurements"
N. Kumada, S. Tanabe, H. Hibino, H. Kamata, M. Hashisaka, K. Muraki, and T. Fujisawa,
Nature Commun. 4, 1363 (2013).
11/1/2013, New internship student: Thomas Ziebarth
9/1/2013, "Shot noise spectroscopy on a semiconductor quantum dot in the elastic and inelastic cotunneling regimes"
Yuma Okazaki, Satoshi Sasaki, and Koji Muraki,
Phys. Rev. B 87, 041302(R) (2013).
21/12/2012, Romain Dubuoget finished his internship at NTT.
3/12/2012, "Real-space imaging of fractional quantum Hall liquids"
Junichiro Hayakawa, Koji Muraki, and Go Yusa,
Nat. Nanotechnol. 8, 31 (2013).
23/10/2012, "Impact of graphene quantum capacitance on transport spectroscopy"
K. Takase, S. Tanabe, S. Sasaki, H. Hibino, and K. Muraki,
Phys. Rev. B 86, 165435 (2012).
27/7/2012, Henri Suominen finished his internship at NTT.
4/7/2012, New internship student: Romain Dubuoget
6/6/2012, "Frequency conversion of radio-frequency edge magnetoplasmons using a quantum point contact"
M. Hashisaka, R. Murata, K. Muraki, and T. Fujisawa,
Appl. Phys. Lett. 100, 233501 (2012).
27/4/2012, "Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots"
K. Grove-Rasmussen, S. Grap, J. Paaske, K. Flensberg, S. Andergassen, V. Meden, H. I. Jørgensen, K. Muraki, and T. Fujisawa,
Phys. Rev. Lett. 108, 176802 (2012).
1/4/2012, Hiroshi Kamata finished his internship at NTT.
1/4/2012, Yuma Okazaki finished his internship at NTT.
(1/4/2011, Post-doctal at Nanostructure Technology Research Group)