Thrust 3: Spin-orbit Coupling Exploration

Dr. Kang Wang - UCLA

Topological insulators, due to their unique band topology, host a very efficient spin-polarized gas of Dirac electrons at their surface. In this thrust we are investigating how these spin-polarized electrons can be harvested to manipulate magnets. In particular, the angular momentum can be transferred between the magnet’s orientation and these spin polarized electrons to switch the orientation of magnetization via the so called spin-orbit torques. Such phenomenon can result in the construction of an energy efficient harvesting devices, a non-volatile memory device and others.