Speaker: Prof Oleg Sushkov
Affiliation: University of New South Wales
Host: Professor Shaffique Adam
Abstract Details: 

In the present work we explain the hour-glass magnetic dispersion in underdoped cuprates. The dispersion arises due to an interplay of the Lifshitz-type magnetic criticality and superconductivity. We provide a unified picture of the evolution of magnetic excitations in various cuprate families, including “hour-glass” and “wine glass” dispersions and emergent static incommensurate order. Besides explaining existing data on magnetic dispersion we propose a neutron scattering experiment that can directly test the developed theory.

About The Speaker: 

https://www.physics.unsw.edu.au/staff/oleg-sushkov

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