Magnetic breakdown in the electron-doped cuprate superconductor Nd(2-x)Ce(x)CuO4: the reconstructed Fermi surface survives in the strongly overdoped regime |
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| Authors: | Helm T Kartsovnik M V Sheikin I Bartkowiak M Wolff-Fabris F Bittner N Biberacher W Lambacher M Erb A Wosnitza J Gross R |
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| Affiliation: | Walther-Mei?ner-Institut, Bayerische Akademie der Wissenschaften, Walther-Mei?ner-Stra?e 8, D-85748 Garching, Germany. |
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| 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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