Department of Electrical Engineering and Information Systems, The University of Tokyo
TOPOLOGICAL QUANTUM ELECTRONICS LABORATORY
Research Facilities
We are merited by many shared facilities from the Tanaka-Ohya group, Cryogenic Research Center and Nanotechnology Platform of The University of Tokyo
III - V Group Molecular Beam Epitaxy System (EQ2100)
Base pressure: 1×10^-10Torr
Installed sources:
Ga,Al,In（Group III）
Si, Be (Dopants)
Mn, Fe (Transition element, for magnetic material）
As（Group V) EPI Valved cracker cell 500 cc
Sb (group V) MBE Komponenten valved cracker cell 420 cc
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In-situ observation: Reflection High Energy Electron Diffraction (RHEED)
※ Using under collaboration with Tanaka lab
Dirac-Materials Molecular Beam Epitaxy System (MBE508)
Base pressure: 1×10^-10Torr
Installed sources:
Ga,Al,In（Group III）
Sn, Bi, Fe
As（Group V) EPI Valved cracker cell 500 cc
Sb (group V) K-cell
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In-situ observation: Reflection High Energy Electron Diffraction (RHEED)
※ Using under collaboration with Tanaka lab
Metal Molecular Beam Epitaxy System (System M)
Base pressure: 1×10^-9Torr
Substrate can be cooled using Liquid Nitrogen
â—† MBE chamber (4 ports): Fe,Al,Sn
â—† E-beam deposition chamber (3 pockets): SiO2, Nb, EuS
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Available for Shadow-mask growth
Magnetic Circular Dichroism (MCD) System – JASCO J700
Magnetotransport Measurement System (3 systems)
â—† Photo-detector：GaAs, S1 Photomultiplier (wavelength range 0.2-1.1μm)
◆ Magnetic field range：~1.2T
◆ Temperature range：4.5K ~ RT
◆ Magnetic field range：~1T
◆ Temperature range：3.5K ~ RT
â—† Motor-driven Magnet Rotation System
Oxford Inst. Superconducting Magnet System
Cryogen-free.
Magnetic field range：0~12T
Temperature range：295 mK ~ RT
Magnetic Properties
Measurement System 3
(common facility of Cryogenic Research Center)
Magnetic field range：0~7T
Temperature range：1.5 K ~ RT
Electron Spin Resonance
(ESR) System
(common facility of Nanotechnology Platform)
Nano-device Fabrication Lab
(common facility of Dept. of EEIS)
Takeda Super-cleanroom
(common facility of Nanotechnology Platform,
the University of Tokyo)
