Magnetic breakdown in the electron-doped cuprate superconductor Nd(2-x)Ce(x)CuO4: the reconstructed Fermi surface survives in the strongly overdoped regime.

Authors :: Helm T
Kartsovnik MV
Sheikin I
Bartkowiak M
Wolff-Fabris F
Bittner N
Biberacher W
Lambacher M
Erb A
Wosnitza J
Gross R
Source :: Physical review letters [Phys Rev Lett] 2010 Dec 10; Vol. 105 (24), pp. 247002. Date of Electronic Publication: 2010 Dec 09.
Publication Year :: 2010
Abstract: We report on semiclassical angle-dependent magnetoresistance oscillations and the Shubnikov-de Haas effect in the electron-overdoped cuprate superconductor Nd(2-x)CexCuO4. 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.

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