Calculations of quantum oscillations in cuprate superconductors considering the pseudogap

Abstract

The observations of quantum oscillations in overdoped cuprate superconductors were in agreement with a charge density contained in a cylindrical Fermi surface but the frequencies of lightly doped compounds were much smaller than expected. This was attributed to a topological transition into small pockets of Fermi surface associated with the existence of the charge density wave underlying superlattice. On the other hand, spectroscopic measurements suggested that the large two-dimensional Fermi surface changes continuously into a set of four disconnected arcs. Here we take into account the effect of the pseudogap that limits the available $k$-space area where the Landau levels are developed on the Luttinger theorem and obtain the correct carrier densities. The calculations show how the disconnected arcs evolve into a closed Fermi surface reconciling the experiments.

arXiv comment3 pages, 3 figures

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Cited by in corpus (4)

• Evidence that cuprate superconductors form an array of nanoscopic Josephson junctions
• Unified model of the Hall effect from insulator to overdoped compounds in cuprate superconductors
• The role of the pseudogap in cuprate superconductors revealed by the Hall effect
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