Title :
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
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;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375429
