Theory of non-Fermi liquid near a diagonal electronic nematic state on a square lattice

2007/01/26 by Ying-Jer Kao, Hae‐Young Kee, Hae-Young Kee
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.76.045106

published as Phys Rev B 76, 045106 (2007) · 4 pages, 3 figures, revtex 4

arxiv created 2007/01/26 · openalex publication_date 2007/07/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We study the effects of Fermi-surface fluctuations on the single-particle lifetime near the diagonal electronic nematic phase on a two-dimensional square lattice. It has been shown that there exists a quantum critical point between the diagonal nematic and isotropic phases [H. Doh et al., Phys. Rev. B 73, 125117 (2006)]. We study the longitudinal fluctuations of the order parameter near the critical point, where the singular forward scattering leads to a non-Fermi-liquid behavior over the whole Fermi surface except along the k_x and k_y directions. We will also discuss the temperature and chemical potential dependences of the single-particle decay rate.

Citations

• Formation of an electronic nematic phase in interacting fermion systems
• Interplay between parallel and diagonal electronic nematic phases in interacting systems