Barkhausen noise in a relaxor ferroelectric

被引：29

作者：

Colla, EV ^{[1
]}

Chao, LK ^{[1
]}

Weissman, MB ^{[1
]}

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.88.017601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Barkhausen noise, including both periodic and aperiodic components, is found in and near the relaxor regime of a familiar relaxor ferroelectric, PbMg1/3Nb2/3O3, driven by a periodic electric field. The temperature dependences of both the amplitude and spectral form show that the size of the coherent changes in the dipole moment shrink as the relaxor regime is entered, contrary to expectations based on some simple models.

引用

页码：176011 / 176014

页数：4

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