2020/03/31 by Pavel A. Volkov, Premala Chandra
Materials Science · Physics and Astronomy · #Condensed matter physics #Coupling (piping) #Criticality #Electron #Fermi Gamma-ray Space Telescope #Iron-based superconductors research #Materials science #Nuclear physics #Physics #Physics of Superconductivity and Magnetism #Point reflection #Polar #Quantum #Quantum mechanics #Rare-earth and actinide compounds #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.124.237601
published as Phys. Rev. Lett. 124, 237601 (2020)
openalex publication_date 2020/06/12 · arxiv created 2020/07/20 · arxiv updated 2020/07/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Motivated by recent experimental realizations of polar metals with broken inversion symmetry, we explore the emergence of strong correlations driven by criticality when the polar transition temperature is tuned to zero. Overcoming previously discussed challenges, we demonstrate a robust mechanism for coupling between the critical mode and electrons in multiband metals. We identify and characterize several novel interacting phases, including non-Fermi liquids, when band crossings are close to the Fermi level and present their experimental signatures for three generic types of band crossings.