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Your search keyword '"Thomas, L.E."' showing total 3 results
Start Over Author "Thomas, L.E." Topic physics
3 results on '"Thomas, L.E."'

1. Void formation during early stages of passivation: Initial oxidation of iron nanoparticles at room temperature

Author

C.M. Wang, You Qiang, Baer, D.R., Duscher, G., Thomas, L.E., Amonette, J.E., and Antony, Jiji

Subjects
Oxidation-reduction reaction -- Analysis, Iron compounds -- Structure, Iron compounds -- Chemical properties, Transmission electron microscopes -- Observations, Physics
Abstract

Microstructure of iron nanoparticles passivated with the iron oxide shell was studied using high-resolution transmission electron microscopy and high-angle annular dark-field imaging in aberration-corrected scanning transmission microscopy. The results revealed that for particles larger than the critical size, an iron/iron-oxide core-shell structure was formed and voids reside at the interface between the oxide shell and the iron core.

Published
2005

2. Precipitation of Au nanoclusters in SrTiO3 by ion implantation

Author

Wang, C.M., Thevuthasan, S., Duscher, G., Shuthanandan, V., Zhang, Y., Thomas, L.E., and Baer, D.R.

Subjects
Nanotechnology -- Analysis, Ion implantation -- Analysis, Gold -- Analysis, Physics
Abstract

MeV ion implantation and subsequent high-temperature annealing were employed to produce Au nanoclusters in single-crystal SrTi03 (001). It is generally inferred that implantation below a critical temperature may lead to a finer Au cluster size.

Published
2004

3. Microstructure of precipitated Au nanoclusters in MgO

Author

Wang, C.M., Thevuthasan, S., Shutthanandan, V., Cavanagh, A., Jiang, W., Weber, W.J., and Thomas, L.E.

Subjects
Ion implantation -- Research, Gold -- Properties, Magnesium oxide -- Properties, Physics
Abstract

Gold nanoclusters dispersed in single crystal MgO are prepared by ion implantation at 975 K and subsequent annealing at 1275 K for 10 h. It is suggested that the density of quantum antidots should depend on the size of the Au clusters.

Published
2003

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