Fermi surface truncation from thermal nematic fluctuations

Abstract

We analyze how thermal fluctuations near a finite temperature nematic phase transition affect the spectral function $A(\mathbf{k},\omega )$ for single-electron excitations in a two-dimensional metal. Perturbation theory yields a splitting of the quasi-particle peak with a d-wave form factor, reminiscent of a pseudogap. We present a resummation of contributions to all orders in the Gaussian fluctuation regime. Instead of a splitting, the resulting spectral function exhibits a pronounced broadening of the quasi-particle peak, which varies strongly around the Fermi surface and vanishes upon approaching the Brillouin zone diagonal. The Fermi surface obtained from a Brillouin zone plot of $A(\mathbf{k},0)$ seems truncated to Fermi arcs.

5 pages, 3 figures, final version as published

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• Cold-spots and glassy nematicity in underdoped cuprates
• Velocity renormalization of nodal quasiparticles in d-wave superconductors
• Free energy and specific heat near a quantum critical point of a metal
• Strong particle-hole asymmetry of charge instabilities in doped Mott insulators
• Spin-fermion model with overlapping hot spots and charge modulation in cuprates
• Elementary Excitations due to Orbital Degrees of Freedom in Iron Based Superconductors
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• Electron self-energy from quantum charge fluctuations in the layered t-J model with long-range Coulomb interaction
• Theoretical insights into electronic nematic order, bond-charge orders, and plasmons in cuprate superconductors
• Spontaneous fourfold-symmetry breaking driven by electron-lattice coupling and strong correlations in high-$T_c$ cuprates
• Possible quantum nematic in a colossal magnetoresistance material
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• Charge and current orders in the spin-fermion model with overlapping hot spots
• Mean-field theory on a coupled system of ferromagnetism and electronic nematic order
• Probing a Bose Metal via Electrons: Inescapable non-Fermi liquid scattering and pseudogap physics
• Retaining Landau quasiparticles in the presence of realistic charge fluctuations in cuprates
• Self-energy effects in cuprates and the dome-shaped behavior of the superconducting critical temperature
• Beyond on-site Hubbard interaction in charge dynamics of cuprate superconductors