Low Temperature Physics: 37, 268 (2011); https://doi.org/10.1063/1.3570925 (4 pages)
Физика Низких Температур: Том 37, Выпуск 3 (Март 2011), c. 344-347    ( к оглавлению , назад )

Anomalous behavior of the Hall effect in electron-doped superconductor Nd2-xCexCuO4+d with nonstoichiometric disorder

T.B. Charikova1, N.G. Shelushinina1, G.I. Harus1, V.N. Neverov1, D.S. Petukhov1, O.E. Sochinskaya1, and A.A. Ivanov2

1 Institute of Metal Physics RAS, Ekaterinburg, Russia
E-mail: charikova@imp.uran.ru

2 Moscow Engineering Physics Institute, Moscow, Russia

Received October 18, 2010


Magnetoresistivity and Hall effect measured in magnetic fields up to B = 9 T (Bc, Jab) in electrondoped Nd2-xCexCuO4+d single crystal films with x = 0.14; 0.15; 0.18 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.

PACS: 72.15.Gd Galvanomagnetic and other magnetotransport effects;
PACS: 74.25.F– Transport properties;
PACS: 74.72.–h Cuprate superconductors.

Key words: magnetoresistivity, Hall effect, electron-doped superconductor.