The Nernst effect from fluctuating pairs in the pseudogap phase

Abstract

The observation of a large Nernst signal in cuprates above the superconducting transition temperature has attracted much attention. A potential explanation is that it originates from superconducting fluctuations. Although the Nernst signal is indeed consistent with gaussian fluctuations for overdoped cuprates, gaussian theory fails to describe the temperature dependence seen for underdoped cuprates. Here, we consider the vertex correction to gaussian theory resulting from the pseudogap. This yields a Nernst signal in good agreement with the data.

4 pages, 2 figures

References in corpus (6)

• Modeling the Fermi arc in underdoped cuprates
• Enhancement of the Nernst effect by stripe order in a high-Tc superconductor
• Giant Nernst Effect due to Fluctuating Cooper Pairs in Superconductors
• Nernst effect and diamagnetism in phase fluctuating superconductors
• Fermi arcs in cuprate superconductors: tracking the pseudogap below Tc and above T*
• Transport implications of Fermi arcs in the pseudogap phase of the cuprates

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