Changing the magnetism of amorphous FeSiB by mechanical milling

被引：2

作者：

Del Bianco, L. ^{[1
,2
]}

Spizzo, F. ^{[3
,4
]}

Tamisari, M. ^{[3
,4
]}

Bonetti, E. ^{[1
,2
]}

Ronconi, F. ^{[3
,4
]}

Fiorani, D. ^{[5
]}

机构：

[1] Univ Bologna, Dipartimento Fis, I-40127 Bologna, Italy

[2] CNISM, I-40127 Bologna, Italy

[3] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[4] CNISM, I-44100 Ferrara, Italy

[5] CNR, Ist Struttura Mat, I-00016 Rome, Italy

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2010年 / 22卷 / 29期

关键词：

ALLOYS; CRYSTALLIZATION; KINETICS;

D O I：

10.1088/0953-8984/22/29/296010

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the magnetic properties of a sample obtained by high-energy mechanical milling from a ferromagnetic FeSiB amorphous ribbon. The milled material mainly consists of a Fe-based amorphous matrix embedding a minor fraction of alpha-Fe nanocrystallites (similar to 23%), and magnetization dynamics effects characterize the magnetic behavior. In particular, a magnetic transition occurs at T similar to 50 K, from a low temperature disordered collective frozen state, similar to a spin-cluster-glass, to a high temperature regime where ferromagnetism predominates. The phenomenon has been ultimately ascribed to the local modification of the interatomic distance distribution in the amorphous matrix, induced by milling.

引用

页数：5