Magnetoresistivity and Hall Effect in Mixed and Normal States of Electron-Doped Superconductor Nd2-XCexCuO4+δ with Nonstoichiometric Disorder

T.B. Charikova; N.G. Shelushinina; G.I. Harus; D.S. Petukhov; O.E. Sochinskaya; A.A. Ivanov

doi:10.4028/www.scientific.net/SSP.168-169.537

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HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169Magnetoresistivity and Hall Effect in Mixed and...

Magnetoresistivity and Hall Effect in Mixed and Normal States of Electron-Doped Superconductor Nd_2-XCe_xCuO_4+δ with Nonstoichiometric Disorder

Abstract:

Magnetoresistivity and Hall effect measured in magnetic fields up to B=9T (B ║ c, J ║ ab) in electron-doped Nd2−xCexCuO4+δ single crystal films with x = 0.15 and different oxygen content (δ) were studied in a temperature range of 0.4-4.2 K. The resistivity and Hall coefficient behaviors in the mixed state are discussed in the framework of flux-flow model with the inclusion of the back-flow of vortices owing to the pinning forces.