Share Email Print
cover

Proceedings Paper

Metal oxide films with magnetically modulated nanoporous architectures
Author(s): Craig A. Grimes; R. S. Singh; Elizabeth Dickey; Oomman Varghese
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A magnetically-driven method for controlling nano- dimensional porosity in sol gel derived metal oxide films, including TiO2, Al2O3, and SnO2, coated onto ferromagnetic amorphous substrates, such as the magnetically-soft Metglas alloys, is described. Based on the porous structures observed dependence on external magnetic field, a model is suggested to explain the phenomena. Under well-defined conditions it appears that the sol particles coming out of solution, and undergoing Brownian motion, follow the magnetic field lines oriented perpendicularly to the substrate surface associated with the magnetic domain walls of the substrate; hence the porosity developed during solvent evaporation correlates with the magnetic domain size.

Paper Details

Date Published: 27 December 2001
PDF: 9 pages
Proc. SPIE 4468, Engineering Thin Films with Ion Beams, Nanoscale Diagnostics, and Molecular Manufacturing, (27 December 2001); doi: 10.1117/12.452555
Show Author Affiliations
Craig A. Grimes, The Pennsylvania State Univ. (United States)
R. S. Singh, The Pennsylvania State Univ. (United States)
Elizabeth Dickey, The Pennsylvania State Univ. (United States)
Oomman Varghese, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 4468:
Engineering Thin Films with Ion Beams, Nanoscale Diagnostics, and Molecular Manufacturing
Emile J. Knystautas; Wiley P. Kirk; Valerie Browning, Editor(s)

© SPIE. Terms of Use
Back to Top