"Electron hydrodynamics with a polygon Fermi surface"

Datum

31.01.2019

Zeit

11:00 - 12:00

Sprecher

Dr. Andrew Lucas

Zugehörigkeit

Stanford University

Serie

MPI-CPfS Festkörperphysikalisches Kolloquium

Sprache

en

Hauptthema

Materialien

Andere Themen

Materialien

Host

Prof. Dr. Mackenzie

Beschreibung

I will discuss a cartoon model for the onset of hydrodynamic behavior in an electron fluid with a polygon Fermi surface. Some interesting features of this model include new dissipative components to the viscosity tensor, a separation of fast and slow scattering rates, and the possibility of non-monotonic temperature dependence in conductance in the ballistic-to-hydrodynamic crossover in flows in channels. Our work is inspired by the possibility of electron hydrodynamics in PdCoO_2, which has an approximately hexagonal Fermi surface. We revisit data on possible hydrodynamic flow from earlier experiments in light of our model.

Links

• MPI CPfS

Letztmalig verändert: 01.02.2019, 01:09:45