masutomi's homepage

MASUTOMI'S HOMEPAGE

Ryuichi Masutomi

OFFICE ADDRESS:

Department of Physics, University of Tokyo
7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JAPAN
Phone: +81-3-5841-4129
Fax: +81-3-5841-4532
E-mail: masutomi[AT]phys.s.u-tokyo.ac.jp
Personal: Born May 28, 1975 in Tokushima, Japan, Married; 2 children

EDUCATION:

March 1998: B.S. Degree from Department of Physics, Sophia University
March 2000: M.E. Degree from Department of Applied Physics, University of Tokyo
May 2003: Ph.D. Degree from Department of Applied Physics, University of Tokyo

PROFESSIONAL EXPERIENCE:

2000-2003 Research Assistant, Institute for Solid State Physics, University of Tokyo
2003-2004 Postdoctoral Research Scientist, Rutgers, The State University of New Jersey (H. Kojima Lab.)
2004-2006 Postdoctoral Research Scientist, Tokyo Institute of Technology (N. Nishida Lab.)
2006-present Research Associate, University of Tokyo

SELECTED PUBLICATION

・Two-dimensional superconducting state of monolayer Pb films grown on GaAs(110) in a strong parallel magnetic field
　Takayuki Sekihara, R. Masutomi, and T. Okamoto
　Phys. Rev. Lett. 111, 057005 (2013); arXiv:1307.2951

・In-plane magnetic field dependence of cyclotron relaxation time in a Si two-dimensional electron system
　Tasuku Chiba, Ryuichi Masutomi, Kentarou Sawano, Yasuhiro Shiraki, and Tohru Okamoto
　Phys. Rev. B 86, 045310 (2012); arXiv:1307.2955

・Metallic Behavior of Cyclotron Relaxation Time in Two-Dimensional Systems
　R. Masutomi, K. Sasaki, I. Yasuda, A. Sekine, K. Sawano, Y. Shiraki, and T. Okamoto
　Phys. Rev. Lett. 106, 196404 (2011); arXiv:1105.4778

・Optical Hall Effect in the Integer Quantum Hall Regime
　Y. Ikebe, T. Morimoto, R. Masutomi, T. Okamoto, H. Aoki, and R. Shimano
　Phys. Rev. Lett. 104, 256802 (2010); arXiv:1004.0308

・Well width dependence of valley splitting in Si/SiGe quantum wells
　K. Sasaki, R. Masutomi, K. Toyama, K. Sawano, Y. Shiraki, T. Okamoto
　Appl. Phys. Lett. 95, 222109 (2009); arXiv:0911.1847

・Strain dependence of hole effective mass and scattering mechanism in strained Ge channel structures
　K. Sawano, K. Toyama, R. Masutomi, T. Okamoto, N. Usami, K. Arimoto, K. Nakagawa, and Y. Shiraki
　Appl. Phys. Lett. 95, 122109 (2009)

・Insulating Phases Induced by Crossing of Partially Filled Landau Levels in a Si Quantum Well
　Tohru Okamoto, Kohei Sasaki, Kiyohiko Toyama, Ryuichi Masutomi, Kentarou Sawano, and Yasuhiro Shiraki
　Phys. Rev. B 79, 241302(R) (2009); arXiv:0903.0486

・Evidence for Two-Dimensional Spin-Glass Ordering in Submonolayer Fe Films on cleaved InAs surfaces
　T. Mochizuki, R. Masutomi and T. Okamoto
　Phys. Rev. Lett. 101, 267204 (2008); arXiv:0810.4425

・Alkali-metal-induced Fermi-level and two-dimensional electrons at cleaved InAs(110) surfaces
　M. Minowa, R. Masutomi, T. Mochizuki and T. Okamoto
　Phys. Rev. B 77, 233301 (2008); arXiv:0803.4448

・Quantum Hall effect at cleaved InSb surfaces and low-temperature annealing effect
　Ryuichi Masutomi, Masayuki Hio, Toshimitsu Mochizuki and Tohru Okamoto
　Appl. Phys. Lett. 90, 202104 (2007); cond-mat/0703670

・Pressure-induced ferromagnetic solid 3He layer on 4He preplated graphite
　A. Yamaguchi, T. Watanuki, R. Masutomi and H. Ishimoto
　Phys. Rev. B 75, 092501 (2007)

・Growth of a Third Ferromagnetic Solid 3He Layer on Graphite
　A. Yamaguchi, T. Watanuki, R. Masutomi and H. Ishimoto
　Phys. Rev. Lett. 93, 165301 (2004)

・Gapless Spin Liquid Behavior in Two-Dimensional Solid 3He
　Ryuichi Masutomi, Yoshitomo Karaki and Hidehiko Ishimoto
　Phys. Rev. Lett. 92, 025301 (2004)

・Anomalous Magnetic-Field Dependence of Positive Ion Mobility in Normal Liquid 3He
　K. Obara, D. Ueno, R. Masutomi, A. Yamaguchi, V. Efimov and H. Ishimoto
　Phys. Rev. Lett. 87, 235301 (2001)

・Low-Temperature Magnetization of Submonolayer 3He Adsorbed on HD Preplated Graphite
　Hiroki Ikegami, Ryuichi Masutomi, Ken Obara and Hidehiko Ishimoto
　Phys. Rev. Lett. 85, 5146 (2000)

April/08/2014