Speaker
Arun Paramekanti
(University of Toronto)
Description
We propose and study a multi-orbital lattice extension of the Sachdev-Ye-Kitaev model of a non-Fermi liquid. Using numerical calculations in the large-N limit, we discuss the phase diagram, thermodynamics, and spectral properties of this model which features a first-order thermal transition into a nematic insulator and a continuous thermal transition into nematic metal phase, arising from orbital polarization of an isotropic strange metal. We explore the transport properties of this model, including its resistive anisotropy and elastoresistivity, across the phase diagram. Our work offers a useful perspective on nematic phases, phase transitions, and transport in a correlated multi-orbital system.
Author
Arun Paramekanti
(University of Toronto)
