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Small-angle neutron scattering investigations of Co-ferro-fluids using polarized neutrons.

A. Wiedenmann

Hahn-Meitner-Institut Berlin, Glienickerstrasse 100, D-14109 Berlin, Germany

Using polarized neutrons, the relative contrasts for small angle scattering are strongly modified which allows a precise evaluation of magnetization, density and composition profiles at surfaces and interfaces of nanoscaled materials. In Co-ferrofluids the magnetic core behaves as a non-interacting single-domain. The core is encapsulated by a shell of surfactant molecules which was found to be impenetrable for the solvent. Tables 1, Figs 3, Refs 7.

Magnetohydrodynamics 37, No. 3, 236-242, 2001 [PDF, 0.42 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X