Robust Marginal Fermi Liquid In Birefringent Semimetals
Strongly Correlated Electrons
2021-12-23 v4 Disordered Systems and Neural Networks
Mesoscale and Nanoscale Physics
High Energy Physics - Theory
Abstract
We investigate the interplay of Coulomb interactions and correlated disorder in pseudospin-3/2 semimetals, which exhibit birefringent spectra in the absence of interactions. Coulomb interactions drive the system to a marginal Fermi liquid, both for the two-dimensional (2d) and three-dimensional (3d) cases. Short-ranged correlated disorder in 2d, or a power-law correlated disorder 3d, has the same engineering dimension as the Coulomb term, in a renormalization group (RG) sense. In order to analyze the combined effects of these two kinds of interactions, we apply a dimensional regularization scheme and derive the RG flow equations. The results show that the marginal Fermi liquid phase is robust against disorder.
Cite
@article{arxiv.2107.07145,
title = {Robust Marginal Fermi Liquid In Birefringent Semimetals},
author = {Ipsita Mandal},
journal= {arXiv preprint arXiv:2107.07145},
year = {2021}
}
Comments
minor typos fixed