Spin currents in topological materials
The spin orbit interaction of electrons in solids play a key role in modern condensed matter physics. Most notably, spin orbit interaction couples the electron spin with its orbital motion, giving rise to unique electronic structures and physical properties. Majority of the topological insulators and Weyl/Dirac semimetals are formed from elements with strong spin orbit interaction. The current focus is to construct exotic materials with unconventional functionalities.
This project aims to design and build topological materials using thin film heterostructures and characterize their unique electronic structure using spin current as a probe. The work involves generation and detection of spin current via application of electrical current, circularly polarized light and acoustic phonons.