SQUID studies of Co-Cu heterogeneous alloy nanowires

被引：51

作者：

Blythe, HJ

Fedosyuk, VM

Kasyutich, OI

Schwarzacher, W

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[2] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[3] Belarus Acad Sci, Inst Solid State Phys & Semicond, Minsk 220072, BELARUS

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 208卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

alloys; nanowires; SQUID magnetometry; zero field cooling;

D O I：

10.1016/S0304-8853(99)00598-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heterogeneous Co20Cu80 alloy nanowires were prepared by electrodeposition and their magnetic properties studied using SQUID magnetometry. Magnetization curves show the influence of the shape anisotropy of the wires. Zero field-cooled (ZFC) initial magnetic susceptibility measurements indicate a range of blocking temperatures which extends at least to room temperature, suggesting the presence of some relatively large Co-rich clusters. A sharp rise in the ZFC susceptibility for the smallest diameter wires at temperatures below about 20 K suggests that in these wires there are also some extremely small clusters present. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：251 / 254

页数：4

共 16 条

[1]

Attenborough K, 1995, MATER RES SOC SYMP P, V384, P3, DOI 10.1557/PROC-384-3

[2] GIANT MAGNETORESISTANCE OBSERVED IN SINGLE LAYER CO-AG ALLOY-FILMS [J].