paper

Hall effect and Fermi surface reconstruction via electron pockets in the high- cuprates

arXiv:1512.03112 · doi:10.1209/0295-5075/113/27003

Abstract

The mechanism by which the Fermi surface of high- cuprates undergoes a dramatic change from a large hole-like barrel to small arcs or pockets on entering the pseudogap phase remains a question of fundamental importance. Here we calculate the normal-state Hall coefficient from the resonating-valence-bond spin-liquid model developed by Yang, Rice and Zhang. In this model, reconstruction of the Fermi surface occurs via an intermediate regime where the Fermi surface consists of both hole- and electron-like pockets. We find that the doping dependence of the Hall number transitions from to over this narrow doping range. At low temperatures, a switch from a downturn to an upturn in the Hall coefficient signals the departure of the electron-like pockets from the Fermi surface.

5 pages, 5 figures

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