Quasiparticle Nernst effect in the cuprate superconductors from the d-density wave theory of the pseudogap phase

Abstract

We consider the Nernst effect in the underdoped regime of the cuprate high temperature superconductors within the d-density wave (DDW) model of the pseudogap phase. By a combination of analytical and numerical arguments, we show that there is a robust low-temperature positive peak (i.e., maximum) in the temperature dependence of the Nernst coefficient when the DDW state is ambipolar, i.e., when the broken symmetry supports the coexistence of both electron- and hole-like quasiparticles in the excitation spectrum, and the electron pocket dominates at the low temperatures. In contrast, the Nernst coefficient is negative and there is no such positive peak if the underlying state is non-ambipolar, i.e., when it supports only one type of quasiparticles. More generally, in the ambipolar state, the sign of the Nernst coefficient can be positive or negative depending on the dominance of the electron or hole pockets, respectively, in the low temperature thermoelectric transport. By modeling the pseudogap phase by a doping-dependent DDW order parameter with a Fermi surface topology that supports both hole and electron pockets, and assuming energy-independent transport scattering times, we analyze the evolution of the Nernst effect with doping concentration at low temperatures in the cuprate phase diagram.

10 pages, 6 eps figures, minor modification, accepted for publication in PRB

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Cited by in corpus (10)

• Nernst effect in Dirac and inversion-asymmetric Weyl semimetals
• Nernst effect beyond the relaxation-time approximation
• Superconducting and Pseudogap Transition Temperatures in High-Tc Cuprates and the $T_c$ Dependence on Pressure
• Electron-like Fermi surface and in-plane anisotropy due to chain states in YBa${}_2$Cu${}_3$O${}_{7-\delta }$ superconductors
• Diamagnetic susceptibility obtained from the six-vertex model and its implications for the high-temperature diamagnetic state of cuprate superconductors
• Stripe order and quasiparticle Nernst effect in cuprate superconductors
• Transport Properties of Stripe-Ordered High Tc Cuprates
• Influence of vortices and phase fluctuations on thermoelectric transport properties of superconductors in a magnetic field
• The Superconducting and Pseudogap Phase Diagram of High-Tc Cuprates
• Orbital Order, Superconductivity, Pseudogap and Spectral Weight in High-Tc Cuprates