Applying the zipping method to Barkhausen noise in order to estimate the degree of (dis)order

被引：2

作者：

Sommer, R. L. ^{[1
]}

Guimaraes, A. P.

机构：

[1] Univ Fed Santa Maria, Dept Fis, BR-97105900 Santa Maria, RS, Brazil

[2] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

disordered systems; Barkhausen noise; phase transition;

D O I：

10.1016/j.jmmm.2003.11.310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, it is shown that samples with composition Fe73.5Cu1Nb3Si22.5-xBx (x = 4; 6, 9) ( Finemet samples) do exhibit the features of a disorder induced phase transition as the annealing temperature is varied from 50 degrees C to 600 degrees C, thus crossing the nanocrystalline phase of the material. The problem of the degree of disorder parameter is addressed by relative entropy calculations based on the zipping method (Phys. Rev. Lett. 88 ( 2002) 048702) applied to the Barkhausen noise time series. (C) 2004 Elsevier B. V. All rights reserved.

引用

页码：E551 / E552

页数：2