Evidence of magnetostrictive influence on magnetic behaviour at low temperature

被引：5

作者：

Lanotte, L ^{[1
]}

Ausanio, G ^{[1
]}

Iannotti, V ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Sci Fis, INFM, I-80125 Naples, Italy

来源：

PHYSICA B | 2000年 / 275卷 / 1-3期

关键词：

low-temperature magnetization; magnetostriction; new materials;

D O I：

10.1016/S0921-4526(99)00749-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetic materials with very different saturation magnetostriction (lambda(s)) were selected: Co59Fe16Zr6CU1Nb2B16 amorphous alloy with low lambda(s) value (congruent to 10(-7)), Fe62.5Co6Ni7.5Zr7.5Cu1Nb2B15 amorphous alloy with lambda(s) congruent to 10(-5) and Tb0.27Dy0.73Fe2.0 (Terfenol) alloy with giant magnetostriction (lambda(s) congruent to 10(-3)). Magnetization intensity curves were obtained by means of a vibrating sample magnetometer from room temperature to 10 K. At low magnetizing field a reentrant magnetization behaviour was evidenced in all the investigated materials. This effect is proportional to magnetostriction value, going from a large effect in Terfenol to a small one in low magnetostriction materials. Saturation field, coercive field and hysteresis area behaviours as a function of temperature are in agreement with both the measured magnetization reentrance and stress-induced effects. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：150 / 153

页数：4

共 7 条

[1] INFLUENCE OF STRUCTURAL RELAXATION ON DENSITY AND YOUNG MODULUS OF METALLIC GLASSES [J].