Nernst Effect in the Electron-Doped Cuprates

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Nernst Effect in the Electron-Doped Cuprates

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Title: Nernst Effect in the Electron-Doped Cuprates
Author: Hackl, Andreas; Sachdev, Subir

Note: Order does not necessarily reflect citation order of authors.

Citation: Hackl, Andreas, and Subir Sachdev. 2009. Nernst effect in the electron-doped cuprates. Physical Review B 79(23): 235124.
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Abstract: We calculate the normal-state Nernst signal in the cuprates resulting from a reconstruction of the Fermi surface due to spin-density wave order. An order parameter consistent with the reconstruction of the Fermi surface detected in electron-doped materials is shown to sharply enhance the Nernst signal close to optimal doping. Within a semiclassical treatment, the obtained magnitude and position of the enhanced Nernst signal agrees with Nernst measurements in electron-doped cuprates. Our result is mainly caused by the role of Fermi-surface geometry under influence of a spin-density wave gap. We discuss also possible roles of short-ranged magnetic order in the normal-state Nernst effect and the Fermi-surface reconstruction observed by photoemission spectroscopy.
Published Version: doi://10.1103/PhysRevB.79.235124
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