Effects of quasiparticle ambipolarity on the Nernst effect in underdoped cuprate superconductors
arXiv:0902.0012 · doi:10.1103/PhysRevLett.103.077001
Abstract
We consider the Nernst effect in the normal state of the underdoped cuprate superconductors, where recent quantum oscillation experiments have indicated the existence of Fermi surface pockets and quasiparticle ambipolarity in the excitation spectrum. Using an ambipolar d-density wave model for the pseudogap, we predict a peak in the Nernst coefficient with decreasing temperature below the pseudogap temperature. The existence of the peak and its sign, which we predict to be the same as that due to mobile vortices in a superconductor, result from the dominance of the electron pocket at low temperatures, as has been observed in recent Hall experiments.
arXiv comment4 pages, 2 eps figures; parts rewritten, new references added; version as published in PRL
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- Theory of dissipationless Nernst effects
- Quasiparticle Nernst effect in stripe-ordered cuprates
- Chirality Induced Tilted-Hill Giant Nernst Signal
- Resolution of two apparent paradoxes concerning quantum oscillations in underdoped high- superconductors
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- Numerical Simulation of the Nernst Effect in Extreme Type-II Superconductors: A Negative Nernst Signal and its Noise Power Spectra
- A quantitative description of Nernst effect in high-temperature 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
- Flux-induced Nernst effect in a superconducting loop