MAGNETIZATION THERMAL NOISE IN SOFT FERROMAGNETS AT LIQUID HE TEMPERATURES

被引：2

作者：

PRODI, GA

VITALE, S

CERDONIO, M

FALFERI, P

机构：

[1] IST NAZL FIS NUCL,GRP COLLEGATO TRENTO,I-38050 TRENT,ITALY

[2] IST NAZL FIS NUCL,NAZL LEGNARO LAB,I-35020 PADUA,ITALY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1990年 / 83卷 / 1-3期

关键词：

D O I：

10.1016/0304-8853(90)90566-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We are investigating the spontaneous equilibrium fluctuations of magnetization in soft ferromagnets at liquid He temperatures using a rf SQUID magnetometer. 1/f noise behaviour is found both in amorphous and polycrystalline materials. We show that the observed magnetization noise is entirely of thermodynamical origin and we discuss the link between 1/f noise and magnetic viscosity. © 1990.

引用

页码：409 / 410

页数：2

共 7 条

[1] SUPERCONDUCTING STRAIN TRANSDUCER [J].