Search for magnetic version of Dirac particles and their topological excitations
From QCLab
- Speaker: Prof. Chung, Jae-Ho (Korea University)
- Date: Wednesday April 03, 2019 05:00pm
- Place: Jungho Seminar Room
In Dirac materials, electrons move as photon-like particles with constant velocities independently of linear momentum. If local magnetic fluxes induce insulating gaps on bulk bands, these particles may flow only along their topological edges or surfaces allowing dissipation-less transport. While such fermionic topological Dirac materials are already well known, their bosonic counterparts have only recently been brought into attention. In this talk, we will review the early and recent inelastic neutron scattering works on magnon Dirac materials, and thereby discuss the ongoing search for the magnonic topological Dirac modes.