Colloquium

How to break Ohm’s law

In graphene and other modern materials, it is now possible to make electric resistance very low. As a result, electrons have enough time to interact, exchange momentum and establish collective flow like that of a viscous fluid. Such “viscous electronics” demonstrate fascinating features: current flowing against the applied field or without any field at all, conductivity exceeding quantum ballistic limit, and vortices of different shapes. In particular, it revived theoretical interest in the classical field of differential equations describing fluid flows. Elementary review of the recent theoretical and experimental results will be given.

Place: Hybrid: Math, 501 and Zoom https://arizona.zoom.us/j/86997964863     Password:   Locute

When

2 p.m. Feb. 18, 2022

Where

Hybrid: Math, 501/Online