Length Scales of Magnetic Correlations in √e¬μ-Co Nanoparticle Assemblies using Small Angle Neutron Scattering

Author

Sachan, M.S. ; Majetich, S.A. ; Ijiri, Y. ; Borchers, J.A. ; Rhyne, J.J.

Author_Institution

Carnegie Mellon Univ., Pittsburgh

fYear

2006

fDate

8-12 May 2006

Firstpage

20

Lastpage

20

Abstract

This article presents experiments on the determination of the length scales of magnetic correlation in ε-Co nanoparticle assemblies using SANS (small angle neutron scattering). In this experiment a 0.5 nm neutron beam was passed through a sealed sample containing a dense assembly of the nanoparticles, and the scattered intensity was collected with two-dimensional detector. Data were collected with magnetic fields ranging from 0 to 5 T, which were applied perpendicular to the neutron beam. The temperature varied between 5 and 275 K.

Keywords

cobalt; ferromagnetic materials; magnetic fluids; magnetisation; nanoparticles; neutron diffraction; 2D detector; Co; cobalt nanoparticle assemblies; magnetic correlation length scale; magnetic flux density 0 T to 5 T; neutron beam; small angle neutron scattering; temperature 5 K to 275 K; wavelength 0.5 nm; Assembly; Magnetic hysteresis; NIST; Nanoparticles; Neutron spin echo; Particle beams; Particle scattering; Physics; Saturation magnetization; Storage area networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375429

Filename

4261454