Magnetization reversal in an individual 25 nm iron-filled carbon nanotube

被引：27

作者：

Banerjee, Palash ^{[1
]}

Wolny, F. ^{[2
]}

Pelekhov, D. V. ^{[1
]}

Herman, M. R. ^{[1
]}

Fong, K. C. ^{[1
]}

Weissker, U. ^{[2
]}

Muehl, T. ^{[2
]}

Obukhov, Yu. ^{[1
]}

Leonhardt, A. ^{[2
]}

Buechner, B. ^{[2
]}

Hammel, P. Chris ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Leibniz Inst Solid State & Mat Res, D-01069 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 25期

基金：

美国国家科学基金会;

关键词：

carbon nanotubes; iron; magnetic field effects; magnetisation reversal; nanowires; switching; FLUCTUATIONS; FE;

D O I：

10.1063/1.3440951

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetization reversal and switching behavior of an individual Fe-filled carbon nanotube has been measured using vibrating cantilever magnetometry. We report measurements of the magnetic field at which the 25 nanometer diameter iron core inside the nanotube reverses. The fields at which reversal occurs, characterized by an exceptionally narrow distribution (sigma(H)<= 1 G at 6.3 K), are determined by thermally activated excitation over a field dependent barrier. The high precision achievable by virtue of measuring individual nanowires allows detailed quantitative understanding of magnetization reversal. (C) 2010 American Institute of Physics. [doi:10.1063/1.3440951]

引用

页数：3

共 25 条

[1]

Aharoni A., 2000, Introduction to the Theory of Ferromagnetism

[2] Magnetic domain-wall logic [J].