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Electron Crystallography of Room Temperature Charge Ordering in Fe3O4

Published online by Cambridge University Press:  07 August 2002

M.L. Rudee ,
David J. Smith  and
D.T. Margulies
M.L. Rudee*
Affiliation:
Center for Magnetic Recording Research, University of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0407
David J. Smith
Affiliation:
Department of Physics and Astronomy, Center for Solid State Science, Arizona State University, Tempe, AZ 85287
D.T. Margulies
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120
*
*Corresponding author
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Abstract

A previously unknown form of charge ordering has been observed in dislocation free thin films of magnetite, Fe3O4. This charge ordering exists on tetrahedral sites and is unrelated to the well known low temperature ordering on octahedral sites that occurs below 120K. From modeling of electron diffraction patterns we deduce that the best fit to the observed diffraction patterns was obtained by reducing the scattering power on one tetrahedral site per unit cell by about 80%.

Keywords

magnetitecharge orderingelectron diffractionmodeling of electron diffraction patterns
Type
Research Article
Information
Microscopy and Microanalysis , Volume 6 , Issue 4 , July 2000 , pp. 400 - 402
Copyright
Copyright © Microscopy Society of America 2000

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