Mysteries near the zero-field Wigner crystal transition in a 2D electron system

Monday, September 20, 2021

I will discuss recent experimental results on the low-temperature transport in a strongly interacting zinc-oxide-based high mobility two dimensional electron system. The data shows clear hallmarks of the long-anticipated transition between a Fermi liquid phase and a Wigner crystal phase at zero magnetic field. Other features of the data, however, suggest new mysteries in the vicinity of this transition. This talk will highlight those mysteries, and overview a number of sharp and unexpected questions that are implied by the data. I will focus on the resistivity at ultra-low temperatures as a function of electron concentration and spin polarization.

virtual (zoom)
The Ohio State University, Department of Physics