CTQM Seminar Type:
- CTQM Seminar
- Duane Physics Room G126
Abstract, Event Details:
Recent experiments have shed much light on the nature of the ordering in the cuprate superconductors at low temperatures and low doping. I will review evidence that the order parameter in the non-Lanthanum-based cuprates is a d-form factor density-wave.
This novel order acts as an unexpected window into the electronic structure of the pseudogap phase at higher temperatures: we argue in favor of a `fractionalized Fermi liquid' with 4 pockets of spin S=1/2, charge +e fermions enclosing an area specified by the hole density away from the antiferromagnetic insulator.