Magnetoresistance and hall effect in electron-doped superconductor Nd2 − xCexCuO4+δ with different degrees of nonstoichiometric disorder: A two-band model

被引：0

作者：

T. B. Charikova

G. I. Kharus

N. G. Shelushinina

V. N. Neverov

D. S. Petukhov

A. A. Ivanov

机构：

[1] Russian Academy of Sciences,Institute of Metal Physics, Ural Branch

[2] Moscow State Institute of Engineering Physics,undefined

来源：

The Physics of Metals and Metallography | 2014年 / 115卷

关键词：

galvanomagnetic effects; nonstoichiometric disorder; electron-doped cuprate superconductors;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Investigations have been performed on the magnetic-field dependences of the longitudinal and Hall resistivity of the electron-doped Nd2 − xCexCuO4+δ system with an optimum content of cerium (x = 0.15) and different degree of the nonstoichiometric disorder in magnetic fields of up to 8 T (B ‖ c; J ‖ ab) in a temperature range of 0.4–4.2 K. The observed anomalous dependences of the Hall coefficient R(B) along with the dependences of the electrical resistivity ρ(B) have been interpreted based on the Drude-Lorentz model in the case of the normal state and in the Bardeen-Stephen model in the mixed state modified with allowance for the coexistence of two types of charge carriers with the opposite charge signs (electrons and holes).

引用

页码：446 / 456

页数：10

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