Nematic phases and elastoresistivity from a multiorbital non-Fermi liquid

Autor:	Arun Paramekanti, Arijit Haldar, Andrew Hardy
Rok vydání:	2023
Předmět:	Condensed Matter::Soft Condensed Matter Condensed Matter - Strongly Correlated Electrons Multidisciplinary Strongly Correlated Electrons (cond-mat.str-el) FOS: Physical sciences
Zdroj:	Proceedings of the National Academy of Sciences. 120
ISSN:	1091-6490 0027-8424
Popis:	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. Comment: 7 pages, 4 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9fc0f49d3ff91f16e85f0ebfd68683c https://doi.org/10.1073/pnas.2207903120 Zobrazit plný text záznamu