Evolution of the modern world is highly correlated with technological development especially in electronics. However, current issues as the undesired heat generation due to the random motion of electrons has limited our progress, hampering our ability to achieve maximum efficiency in our electronic devices. A solution to such problem arises in condensed matter physics through the discovery of new class of materials known as topological insulators. This unconventional class of materials does not allow electrical flow in its bulk interior but possesses a one-way highway-like conduction channel – superhighway – in its boundary. These superhighway conduction channels behave as massless Dirac fermions. In this talk, I will discuss the experimental realization of topological insulator phase – superhighway conduction channel – of matter in real materials through photoemission techniques. The unusual properties of the protected topological surface states can lead to future applications in spintronics and quantum computation.
La conférence est pour tout public et le café est servi dès 11h30.
