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Neutron Science Laboratory

A neutron has dual nature of a wave with a wave length of about 1 Å and a particle with a kinetic energy of about 100 meV. A neutron also has excellent transparency of matter and a nuclear magnetic moment. Owing to these properties, neutron scattering is a powerful method to investigate the structure and dynamics of atoms and electron spins in condensed matter. Since 1993, Neutron Science Laboratory (NSL) has been playing a central role in neutron scattering activities in Japan not only by performing its own research but also by providing a general user program using the university-owned 12 neutron scattering spectrometers installed at the research reactor JRR-3 (20 MW), JAEA (Tokai, Ibaraki). Furthermore, NSL owns a cutting-edge inelastic neutron scattering spectrometer HRC in J-PARC, which started its operation in 2009 and has been managed with KEK. Major research areas supported by the NSL user program are solid state physics (superconductors, topological materials, novel quantum phases, etc.), soft matter (polymers, gels, etc.), complex systems (glass, liquid, clathrate materials, etc.), material science (ionic conductors, hydrogen systems, etc.), biological physics, and fundamental physics on neutrons. The NSL also operates the US-Japan cooperative program on neutron scattering since 1984.

Neutron Science Laboratory

Member(*Leader, **Dupty Leader ) Research Subjects
MASUDA, Takatsugu **
Associate Professor
Group's HP
  1. Magnetic excitations of quantum magnets, frustrated magnets, and topological magnets 
  2. Detection of spin wave spin current by neutron 
  3. Development of neutron spectrometer
MAYUMI, Koichi
Associate Professor
Group's HP
  1. Toughening mechanism of tough polymeric materials
  2. Structure of multi-component polymer and soft matter systems by small-angle neutron/X-ray scattering
  3. Dynamics of multi-component polymer and soft matter systems by quasi-elastic neutron scattering
NAKAJIMA, Taro
Associate Professor
Group's HP
  1. Neutron scattering studies on magnetic skyrmions and their dynamics
  2. Magnetic structure analysis by means of polarized neutron scattering
  3. Control of magnetic and dielectric properties in multiferroics by means of anisotropic stress
  4. Time-resolved neutron scattering studies on nonequilibrium and transient phenomena
YAMAMURO, Osamu
Professor
Group's HP
  1. Structure and dynamics of glasses and supercooled liquids 
  2. Structure and dynamics of water and related materials (e.g., gas hydrates) 
  3. Thermal and dynamical properties of ionic liquids 
  4.  Structure and dynamics of guest molecules and ions confined in porous materials
Visiting Professor
SADAKIYO, Masaaki
Visiting Associate Professor