title: Quantum oscillations in the high-Tc cuprates.
abstract: We review recent progress in the study of quantum oscillations as a tool for uniquely probing low-energy electronic excitations in high-T(c) cuprate superconductors. Quantum oscillations in the underdoped cuprates reveal that a close correspondence with Landau Fermi-liquid behaviour persists in the accessed regions of the phase diagram, where small pockets are observed. Quantum oscillation results are viewed in the context of momentum-resolved probes such as photoemission, and evidence examined from complementary experiments for potential explanations for the transformation from a large Fermi surface into small sections. Indications from quantum oscillation measurements of a low-energy Fermi surface instability at low dopings under the superconducting dome at the metal-insulator transition are reviewed, and potential implications for enhanced superconducting temperatures are discussed.
authors.affiliation: Department of Physics, Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UK. ses59@cam.ac.uk
authors.forename: Suchitra E
authors.initials: SE
authors.lastname: Sebastian
authors.forename: Neil
authors.initials: N
authors.lastname: Harrison
authors.forename: Gilbert G
authors.initials: GG
authors.lastname: Lonzarich