Research Areas

We aim to study quantum phenomena which appear in topological structures such as in nano-magnetic materials. We develop measuring technologies which enable us to observe quantum phenomena at high phase resolution under the controlled electric and magnetic fields in nanoscopic dimensions, mainly employing world-brightest electron beam interference technologies such as electron holography and Lorentz microscopy, in addition to very low temperature cryogenic technology, magnetic field control technology, and electron field control technology. We observe local electric and magnetic fields in nanoscopic dimensions including giant spin accumulations, topological magnetic materials, and vortices in high-Tc superconductors using these electron wave interference technologies.

Research Subject

1. Improvement and development of technologies for electron interferometry
2. Observations of superconducting, magnetic and other materials by using electron interferometry
3. Motion control of superconducting vortices and magnetic domains
4. Electron beams carrying orbital angular momentum
5. Development of measurement technologies for quantum phenomena observation

Related links

1. RIKEN Advanced Science Institute Website_Laboratories Page

Press release

December 26, 2007

Massive boost in data storage now a possibility with nanowires
Discovery of nanoscale magnetic organization points way to nanowire-based memory chips

RIKEN RESEARCH

May 02,2008

Current pulses make the switch