Abstract
We report on semiclassical angle-dependent magnetoresistance oscillations and the Shubnikov–de Haas effect in the electron-overdoped cuprate superconductor . Our data provide convincing evidence for magnetic breakdown in the system. This shows that a reconstructed multiply connected Fermi surface persists, at least at strong magnetic fields, up to the highest doping level of the superconducting regime.
- Received 13 August 2010
DOI:https://doi.org/10.1103/PhysRevLett.105.247002
© 2010 The American Physical Society