Mansour Shayegan
Princeton University, USA
Date
2 March 2022
Host
Klaus Ensslin
Title
Adventures in Clean Flatland Electrons
Abstract
I will present fabrication and physics of GaAs/AlAs structures containing 2D electrons with record-high mobilities, exceeding 50 million cm2/Vs. The residual (unwanted) impurities in these samples are less than about one per 10 billion Ga/As/Al atoms. The talk will focus on many-body physics in these samples, ranging from fractional quantum Hall effect, spontaneous valley and spin ferromagnetism, and Wigner crystals at low electron densities.
Livestream
Recording
ETH Video Portal
Mansour Shayegan (left) with Klaus Ensslin (right)
