Condensed Matter Seminar - Leonid Golub (26.4.2024)
Friday 26.4.2024 at 14:00, Lecture room F1 109
Leonid Golub (University of Regensburg):
Weak localization phenomenon
Abstract:
Weak localization (WL) is a quantum transport phenomenon that occurs due to the interference of electronic de Broglie waves. WL is observed in metals and semiconductors as a correction to the conductivity, which anomalously depends on temperature and magnetic field. This interference can be partially disrupted by various factors such as inter-electron scattering, spin relaxation, or inter-valley scattering and valley-dependent splittings in multi-valley systems. During the talk, we will discuss the calculation of the WL conductivity correction and apply the formalism to the problem of WL in spin-orbit coupled graphene.