Team Leader
Naoto NAGAOSA (D.Sci.)

Research Areas

The electrons in solids interacting via Coulomb interaction obey the law of quantum mechanics. Furthermore, the relativistic effect is often enhanced since the velocities of electrons are rather fast due to the strong binding potential of the atomic nuclei. Starting from these fundamentals of solid state physics, we will explore theoretically the new functionalities of the strongly correlated electronic systems. Especially, the special focus will be put on the development of "quantum electrodynamics" in solids and its consequent "cross correlation effect". We will create new device concepts by combining the field theoretical approach, computer simulations, and the first-principles band calculations, with the close collaboration with the experimental groups.

Research Subject

1. Theory of spin textures
2. Theory of topological Hall effects
3. Theory of electron-phonon coupling in correlated electrons

Related links

1. RIKEN Advanced Science Institute Website_Laboratories Page

RIKEN RESEARCH

July 08,2011

Unfazed by imperfections
The strong coupling between electrical currents and magnetization in topological insulator materials is surprisingly unaffected by impurities

May 14,2010

The 'Hall' mark of a quantum magnet
The presence of exotic particles, called spinons, might now be detectable in a magnetic field, providing insight into quantum magnet properties

March 13,2009

Lessons from a frustrated magnet
A new quantum theory describes magnetism in multiferroic materials more realistically than earlier theories

February 06,2009

Spin currents heat up
Long-range spin currents induced by heat herald a new era for spintronic applications

January 16,2009

Free from approximations
A novel numerical technique permits researchers to study the interaction between elementary particles within a material without approximations