Effect of nonstoichiometric disorder on the Hall coefficient in electron-doped Nd2-xCexCuO4-δ single crystal films

被引：0
|
作者：
Charikova, T. B. [1 ]
Shelushinina, N. G. [1 ]
Harus, G. I. [1 ]
Karskanov, I. V. [1 ]
Sochinskaya, O. E. [1 ]
Ivanov, A. A. [2 ]
机构：
[1] Inst Met Phys RAS, Ekaterinburg, Russia
[2] Moscow Engn Phys Inst, Moscow 115409, Russia
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷
关键词：
Cuprate superconductors; Transport properties; Hall effect;
D O I：
10.1016/j.physc.2009.11.055
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Hall effect and magnetoresistivity measured in magnetic fields up to B = 9 T (B parallel to c, J parallel to ab) in electron-doped Nd2-xCexCuO4+delta single crystal films with x = 0.14; 0.15 and different oxygen content (6) were studied in a temperature range of 0.4-40 K. It was found that for the optimally doped Nd2-xCexCuO4+delta (x = 0.15) the heat treatment (annealing) under various conditions leads to the decrease of the disorder parameter, charge carriers delocalization and considerable increase of the mean free path. On the other hand, charge carriers concentration and mean free path were practically independent on the heat treatment conditions for underdoped compounds (x = 0.14). (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：S221 / S222
页数：2
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