Magnetoresistance anomalies in antiferromagnetic YBa2Cu3O6+x:: Fingerprints of charged stripes

被引：94

作者：

Ando, Y ^{[1
]}

Lavrov, AN ^{[1
]}

Segawa, K ^{[1
]}

机构：

[1] Cent Res Inst Elect Power Ind, Tokyo 2018511, Japan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.83.2813

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report novel features in the in-plane magnetoresistance (MR) of heavily underdoped YBa2Cu3O6+x, which unveil a developed "charged stripe" structure in this system. One of the striking features is an anisotropy of the MR with a "d-wave"-like symmetry upon rotating the magnetic field H within the ab plane, which is caused by the rotation of the stripes with the external field. With decreasing temperature, a hysteresis shows up below similar to 20 K in the MR curve as a function of H and finally below 10 K the magnetic-field application produces a persistent change in the resistivity. This "memory effect" is caused by the freezing of the directionally ordered stripes.

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页码：2813 / 2816

页数：4

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