Nonlinear doping of cuprate superconductors - The case of Bi2Sr2-xLaxCuO6+δ

被引：1
|
作者：
Roehler, J. [1 ]
机构：
[1] Univ Cologne, Fachgrp Phys, D-50937 Cologne, Germany
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷
关键词：
Superconductivity; Cuprates; Doping; Substitution effects; Electronic structure; Phase separation; Bismuth; Oxygen;
D O I：
10.1016/j.physc.2009.11.027
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We analyze the hole doping mechanism in Bi2Sr2-xLaxCuO6+delta (BSLCO). The singular optimum around x = 0.35 is found to be connected with a feedback between the doped CuO2 layers and its dopant reactant [La3+/Bi3+-O-delta] locking the number of doped holes preferentially on to the universal optimum n(opt) similar or equal to 0.16. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：S39 / S41
页数：3
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