Labs by Department
Division of New Materials Science
Research Subjects
Dynamics and quantum phase transitions in low dimensional or frustrated spin systems Exotic superconductors Ordering and fluctuations of charge, orbital, and multipoles in strongly correlated electron systems Spin and charge dynamics in magnetic organic conductors
Research Subjects
Magnetism and superconductivity in heavy electron systems Multipole orderings and fluctuations in f electron systems Magnetization of geometrically frustrated magnets Ground state properties of quantum spin systems
Research Subjects
Development and studies of structural and physical properties for novel organic (super)conductors based upon molecular degree of freedom Development and studies of structural and physical properties for organic dielectrics in use of proton dynamics Development and studies of structural and physical properties for novel metal complexes whose magnetism and conductivity are competitive Studies of responses to external stimuli (light, magnetic and electric fields, temperature, pressure) for molecular materials
Research Subjects
Exotic superconductivity and spin liquid states near quantum phase transitions Berry phase effects in magnetic metals Quantum spin states in two-dimensional magnetic semiconductors
Research Subjects
Magnetism and superconductivity in transition-metal compounds Transport and optical properties of transition-metal compounds Search for novel materials using high-pressure synthesis Investigation of structural properties using quantum beams
Division of Condensed Matter Theory
Research Subjects
Quantum phase transitions in spin systems with strong frustration Kondo effects of a vibrating magnetic ion Kondo transport phenomena through quantum dots
Research Subjects
GWΓ method: Development of the calculation method for the electron self-energy always satisfying the Ward identity and its application to actual materials Time-dependent density functional theory: Dynamic properties of the inhomogeneous electron gas First-principles calculation of the superconducting transition temperature: Proposal of a good functional form for the pairing interaction in the density functional theory for superconductors Polarons and bipolarons: Characteristic features of a Jahn-Teller system and effects of anharmonicity
Research Subjects
Field-theory formulation of Electron Spin Resonance in low-dimensional quantum spin systems Conformal Field Theory and its applications to condensed matter physics Topological phases and quantum entanglement Liquid Helium 4 in nanoporous media and quantum critical phenomena Phase transitions and superconductivity in heavy fermion systems
Research Subjects
Electronic states of strongly correlated systems with d- or f-electrons Statistical physics of frustrated systems Theory of novel phases in quantum magnets Anharmonic lattice dynamics and superconductivity
Research Subjects
Quantum Hall effects on graphene Topological insulator Topological invariants in condensed matters Topological order
Research Subjects
Structure of the electrode/solution interface and electrocatalytic reaction dynamics Effective screening method and simulation of electron transfer and nonlinear optical processes First-principles calculation of electronic excited state on the basis of many-body perturbation method
Research Subjects
Transport properties in mesoscopic systems Theory of electron correlation in low-dimensional conductors Fundamental theory of non-equilibrium statistical mechanics and quantum measurement Development of numerical algorithms for interacting electron systems
Division of Nanoscale Science
Research Subjects
Quantum transport in 2DEG systems under artificial potential modulation Thermoelectric effects and a.c. transport in quantum Hall systems Quantum transport in graphite and graphene
Research Subjects
Creation and detection of spin current in semiconductors Study of many-body effects in quantum structures Study of peculiar phenomena in superconductor-semiconductor hybrid structures Transport and magnetism in diluted magnetic semiconductors
Research Subjects
Spin dynamics in nano-scale magnetic vortex lattice Study for the mechanism of spin current generation via spin Hall effect Magnetic phase transition using spin current Spin injection into superconductor/ferromagnet hybrid devices
Research Subjects
Electronic states, conduction and magnetism of nano-structured materials Surface dynamical phenomena induced by electron tunneling and photo-excitation Formation processes of nano-structured materials at surfaces
Research Subjects
Interaction between organic molecules and solid surfaces Dynamical processes of atoms and molecules on metal surfaces Electronic states and chemical reaction at oxide surfaces Investigation of electronic states at surface and interface using SR (synchrotron radiation) Electronic states and conductivity of nano-scale structures on surfaces
Research Subjects
Low temperature STM on surface electronic properties by observation of electron standing waves and the Friedel oscillation Dynamical processes of atoms and molecules on metal surfaces Measurements of surface potential and electrical conductance by AFM Elemental / chemical analysis in nanometer scale using synchrotron-radiation assisted STM
Research Subjects
Growth of thin oxide films and heterostructures by pulsed laser deposition Phase transition mechanisms in oxides under external excitations Photocatalytic activity at oxide – liquid interfaces Electronic behavior of oxides in various device structures
Division of Physics in Extreme Conditions
Research Subjects
Search for new physical phenomena under multi extreme conditions Study of the pressure induced phase transitions in strongly correlated electron systems Development of high pressure apparatus and confirmation of physical property measurement techniques under the multi extreme conditions
Research Subjects
Quantum transport of Dirac electron system in graphene and zerogap organic conductors Interlayer coherence and angle-dependent magnetotransport in layered conductors Quantum transport of chiral surface state in multilayer quantum Hall systems Charge and spin density waves under magnetic fields in low-dimensional organic conductors Chaos and electron transport in Bloch electron systems under magnetic and electronic fields
Research Subjects
- Quantum spin liquid state in geometrically-frustrated magnets
- Unconventional superconducting states at ultra-low temperatures
- Developments of ultra-low temperature cryostats and the precision measurement systems
Materials Design and Characterization Laboratory
Research Subjects
Search for a new material realizing a quantum spin system or a strongly correlated electron system Ground state of the spin-1/2 kagome antiferromagnet High-Tc superconductors
Research Subjects
Search for novel quantum phases and quantum transitions Numerical methods for many-body physics, such as quantum Monte Carlo techniques and tensor network methods Spin glasses
Research Subjects
Flow-induced deformation of red blood cells Fusion and fission of biomembrane Self-assembly and morphological transition of lipid membrane Melting transition in two dimensions
Neutron Scienbce Laboratory
Research Subjects
Structure and dynamics, phase separation, volume phase transition, and sol-gel transition of functional polymer gels Deformation mechanisms of super-tough polymer gels Structural evolution of nanoemulsion and micelles in flow field Development and structural analyses of ion-gels
Research Subjects
Neutron scattering study of metal-insulator transition, magnetic ordering, charge/orbital orderings in transition-metal oxides Neutron scattering study of spin sturucture and dynamics in noncentrosymmetric magnetic superconductors
Research Subjects
Dynamics of disordered condensed systems, such as glass transitions and boson peaks Structure and dynamics of water and related materials such as hydrated porous crystals Thermal and dynamical properties of room-temperature ionic liquids Spin dynamics of single molecule magnets
Research Subjects
Magnetic structure and excitations in frustrated magnets Search of new quantum magnets Magnetic excitation in supercrystal of oxygen molecule in nanoporous metal complex
International MegaGauss Science Laboratory
Research Subjects
Magneto-optics in ultra-high magnetic fields Technical developments for destructive ultra-high magnetic field magnets and for solid-state physics measurements Magnetization processes of magnetic materials in ultra-high magnetic fields
Research Subjects
Study on magnetism of quantum spin systems Study on magnetism and conductivity of strongly correlated electron systems Development of non-destructive 100 T-magnet Development of ultra-long pulse magnet
Research Subjects
Field-induced transitions in multiferroic materials High-field studies on high temperature superconductors High-speed polarizing microscope imaging in pulsed-high magnetic fields Field-induced transitions in magnetic shape-memory alloys
Research Subjects
Quest of magnetic field-induced phase transitions of solid oxygen Magnetic field-induced insulator–metal transition Magnetization process of quantum spin systems Electronic states of heavy fermions in high magnetic fields
Center of Computational Materials Science
Research Subjects
Quantum liquid state in low-dimensional quantum spin systems Novel quantum phases created by competition of dimensionality, quantum fluctuations, and disorder Development of new simulation algorithms Parallelization of simulation software and development of libraries
Laser and Synchrotron Research Center
Research Subjects
Atomic movie based on ultrafast luminescence spectroscopy Dynamics of photoinduced phase transitions by time-resolved infrared and terahertz spectroscopy Time-resolved observation of surface morphology by a soft X-ray interferometer
Research Subjects
Ultra-high resolution laser-photoemission study on the superconductors and the low dimensional materials Time-resolved laser-photoemission study on the photo-induced phenomena Laser photoelectron microscopy on the electronic states of nanomaterials
Research Subjects
Studies on surfaces, interfaces and nano-structures by diffraction/scattering Development of new methods to study the surfaces and interfaces Optical phenomena such as nonlinear optics in X-ray wavelength region X-ray diffraction physics, X-ray and neutron optics, and X-ray interferometry
Research Subjects
Device physics of gain-switched semiconductor lasers and solar cells Many-body interactions and non-equilibrium properties of low-dimensional electron-hole systems in clean semiconductor quantum wires and wells Material physics and development of high-quality semiconductor nano-structures via microscopy Bioluminescence of firefly, jelly fish, sea firefly, etc. and bio/chemiluminescence measurement standards
Research Subjects
Developments of time-resolved soft X-ray spectroscopy and researches on surface dynamics Electronic structures of metal and semiconductor surfaces studied by means of photoelectron spectroscopy Development of time-resolved experiments using ultra-short soft X-ray pulses and researches on ultrafast spin dynamics
Research Subjects
Development and precise control of ultrashort pulse laser system High-rep rate, high-field physics Precision spectroscopy
Research Subjects
Development of intense ultrashort-pulse lasers Generation of attosecond soft x-ray pulses, high harmonic generation, and their applications to ultrafast spectroscopy Coherent control and imaging of molecules using intense laser sources
Research Subjects
Study on the origin and observation of elementary excitations (crystal field excitation, spinon, magnon, charge density wave, orbiton etc.) in strongly correlated materials like Mott insulators and noble high temperature superconductors Development of in situ soft X-ray spectroscopy for surface reaction of fuel cell catalysts, electrochemical reaction, photocatalytic reaction and functionality of metalloproteins Basic study on ultrahigh energy resolution optics for soft X-ray emission and time-resolved spectroscopy