Nematic phases and elastoresistivity from a multiorbital non-Fermi liquid

Abstract

We propose and study a two-orbital lattice extension of the Sachdev-Ye-Kitaev model in the large-$N$ limit. The phase diagram of this model features a high temperature isotropic strange metal which undergoes a first-order thermal transition into a nematic insulator or a continuous thermal transition into nematic metal phase, separated by a tunable tricritical point. These phases arise from spontaneous partial orbital polarization of the multiorbital non-Fermi liquid. We explore the spectral and transport properties of this model, including the d.c. elastoresistivity, which exhibits a peak near the nematic transition, as well as the nonzero frequency elastoconductivity. Our work offers a useful perspective on nematic phases and transport in correlated multiorbital systems.

7 pages, 4 figures

References in corpus (8)

• Formation of a Nematic Fluid at High Fields in Sr3Ru2O7
• Are non-Fermi-liquids stable to Cooper pairing?
• Observation of a Nematic Quantum Hall Liquid on the Surface of Bismuth
• Competition between d-wave superconductivity and antiferromagnetism in the 2D Hubbard model
• Field tunable spin density wave phases in Sr3Ru2O7
• Dispersive SYK model: band structure and quantum chaos
• Emergent defect states as a source of resistivity anisotropy in the nematic phase of iron pnictides
• Inter-orbital nematicity and the origin of a single electron Fermi pocket in FeSe

Cited by in corpus (2)

• Orbital selective order and ${\mathbb{Z}}_3$ Potts nematicity from a non-Fermi liquid
• Nematic order in topological SYK models