Finite-size effects in nickel nanowire arrays

被引：121

作者：

Sun, L ^{[1
]}

Searson, PC

Chien, CL

机构：

[1] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.61.R6463

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nickel nanowire arrays with diameters in the range 30-500 nm have been fabricated by electrochemical deposition into nanoporous, single-crystal mica templates, which allow measurements of the magnetic properties of nickel nanowire arrays at high temperatures. The Curie temperature is found to be reduced by as much as 51 K for the 30 nm diameter nanowires. The Curie temperature shift with wire diameter follows the finite-size scaling relation with lambda = 0.94 and xi(0) = 22 Angstrom.

引用

页码：R6463 / R6466

页数：4

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