Collapse of antiferromagnetism in hole doped La2CuO4 and electron doped Nd2CuO4

被引：0

作者：

Bucher, Manfred ^{[1
]}

机构：

[1] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2016年 / 531卷

关键词：

High-temperature superconductors; Copper oxides; Antiferromagnetism; COPPER-OXIDE METALS; SPIN CORRELATIONS; PSEUDOGAP;

D O I：

10.1016/j.physc.2016.09.003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Loop-current magnetic moments of magnitude., reinforced by Cu2+ spin magnetic moments of magnitude mu, establish antiferromagnetism (AF) in pristine La2CuO4 and Nd2CuO4. Because of lambda/mu approximate to 3, loop currents provide the major contribution (similar to 75%) to AF and Cu2+ spin magnets a minor contribution (similar to 25%). This disparity, combined with different mechanisms of destructing the respective moments by doping, explains both the precariousness of AF in hole doped La(2-x)Ae(x)CuO(4) (Ae = Sr, Ba) and its robustness in electron doped Nd2-xCexCuO4. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：6 / 8

页数：3

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