Effects of quenching and annealing on the high-temperature magnetic properties of rapidly quenched Au80Fe20 alloy

被引：2

作者：

Allia, P.

Coisson, M.

Tiberto, P.

Vinai, F.

机构：

[1] Ist Elettrotecnico Nazl Galileo Ferraris, I-10135 Turin, Italy

[2] INFM, I-10135 Turin, Italy

[3] Politecn Torino, Dipartimento Fis, Turin, Italy

来源：

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

关键词：

paramagnetism; superparamagnetism; magnetic nanoparticles;

D O I：

10.1016/j.jmmm.2003.12.235

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rapidly quenched Au80Fe20 ribbons and platelets exhibit a dominant paramagnetic response above room temperature; the ordering paramagnetic units are clusters of highly correlated spins. Annealing enhances spin clusterization and brings about the precipitation of a small fraction (0.5%) of interacting Fe nanoparticles, with a radius of 3 nm and an average interparticle distance of 50 nm. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：E1189 / E1190

页数：2

共 6 条

[1] Observation of isotropic giant magnetoresistance in paramagnetic Au80Fe20 -: art. no. 180404 [J].

Allia, P ;

Coisson, M ;

Selvaggini, V ;

Tiberto, P ;

Vinai, F .

PHYSICAL REVIEW B, 2001, 63 (18)

[2] Granular Cu-Co alloys as interacting superparamagnets [J].

Allia, P ;

Coisson, M ;

Tiberto, P ;

Vinai, F ;

Knobel, M ;

Novak, MA ;

Nunes, WC .

PHYSICAL REVIEW B, 2001, 64 (14) :1444201-14442012

[3]

BECK PA, 1980, PHYS REV B, P4204

[4] X-ray analysis of microstructure in Au-Fe melt spun alloys [J].

Bosco, E ;

Enzo, S ;

Baricco, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 262 (01) :136-141

[5]

SCHEIL E, 1958, Z METALLKD, V49, P590

[6]

ZIBOLD G, 1987, LANDOLTBORNSTEIN M B, V19, P14204

← 1 →