Ferromagnetic resonance in submicron metallic wires

Author

Pignard, S. ; Goglio, G. ; Huynen, I. ; Radulescu, A. ; Piraux, L.

Author_Institution

Unite de Physico-Chimie et de Physique des Materiaux, Univ. Catholique de Louvain, Belgium

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3482

Lastpage

3484

Abstract

We report on the microwave properties of a nanostructured magnetic planar substrate. It consists of an array of parallel magnetic nanowires constituted of nickel, cobalt or Ni/Fe alloy embedded in a porous polymer membrane. Experiments consist of transmission measurements carried out on microwave stripline. Measurements were performed at frequencies ranging from 100 MHz to 40 GHz and under static magnetic fields up to 5.6 kOe applied along the wire axis. Resonance phenomena have been observed in the presence but also in the absence of the DC magnetic field at frequencies which depend on the nature of the material and the applied static magnetic field. Results are consistent with those expected for a ferromagnetic resonance (FMR) experiment and the observed behaviors are analyzed in the framework of the classical FMR theory

Keywords

demagnetisation; ferromagnetic resonance; magnetic microwave devices; microwave measurement; strip lines; 100 MHz to 40 GHz; Co; DC magnetic field; Ni; NiFe; anostructured magnetic planar substrate; ferromagnetic resonance; microwave properties; microwave stripline; parallel magnetic nanowires; porous polymer membrane; static magnetic fields; submicron metallic wires; transmission measurements; Cobalt; Frequency; Iron; Magnetic field measurement; Magnetic materials; Magnetic properties; Magnetic resonance; Nanowires; Nickel; Wires;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908867

Filename

908867