Magnetic Breakdown in the Electron-Doped Cuprate Superconductor Nd2-xCexCuO4: The Reconstructed Fermi Surface Survives in the Strongly Overdoped Regime

Helm, T.; Kartsovnik, M. V.; Sheikin, I.; Bartkowiak, M.; Wolff-Fabris, F.; Bittner, N.; Biberacher, W.; Lambacher, M.; Erb, A.; Wosnitza, J.; Gross, R.

doi:10.1103/PhysRevLett.105.247002

Magnetic Breakdown in the Electron-Doped Cuprate Superconductor Nd_2-xCe_xCuO₄: The Reconstructed Fermi Surface Survives in the Strongly Overdoped Regime

Helm, T.; Kartsovnik, M. V.; Sheikin, I.; Bartkowiak, M.; Wolff-Fabris, F.; Bittner, N.; Biberacher, W.; Lambacher, M.; Erb, A.; Wosnitza, J.; Gross, R.

We report on semiclassical angle-dependent magnetoresistance oscillations and the Shubnikov–de Haas effect in the electron-overdoped cuprate superconductor Nd_2-xCe_xCuO₄. 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.

Involved research facilities

High Magnetic Field Laboratory (HLD)

Physical Review Letters 105(2010), 247002
DOI: 10.1103/PhysRevLett.105.247002
Cited 63 times in Scopus

Permalink: https://www.hzdr.de/publications/Publ-15071