Low Temperature Physics: 43, 475 (2017); https://doi.org/10.1063/1.4983182
Физика Низких Температур: Том 43, Выпуск 4 (Апрель 2017), c. 593-595    ( к оглавлению , назад )

The mixed-state Hall conductivity of single-crystal films Nd2–xCexCuO4+δ (x = 0.14)

N.G. Shelushinina1, G.I. Harus1, T.B. Charikova1,2, D.S. Petukhov1, O.E. Petukhova1, and A.A. Ivanov3

1M.N. Mikheev Institute of Metal Physics Ural Branch of RAS, Ekaterinburg, Russia
E-mail: Charikova@imp.uran.ru

2Ural Federal University, Ekaterinburg, Russia

3National Research Nuclear University MEPhI, Moscow, Russia

Received December 6, 2016

Аннотация

The magnetic-field dependencies of the longitudinal and Hall resistivity of the electron-doped compounds Nd2–xCexCuO4+δ in underdoped region (x = 0.14) were investigated. It was established experimentally a strong magnetic field dependence of the Hall conductivity, σxy(B) = Cb/B, in the region of magnetic fields corresponding to a transition from superconducting to resistive state. The observed feature can be explained with the sum of contributions of the quasiparticles and moving Abrikosov vortices into Hall effect in a mixed state of type-II superconductor.

PACS: 73.43.–f Quantum Hall effects;
PACS: 73.43.Qt Magnetoresistance.

Ключевые слова: Hall effect, electron-doped superconductor, mixed state.

Published online: February 24, 2017