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Ion beam mixing of La(OH)3/Cu bilayers

Published online by Cambridge University Press:  31 January 2011

J. P. Mathevet ,
A. Traverse ,
J. Chaumont ,
M. Gasgnier  and
S. Megtert
J. P. Mathevet
Affiliation:
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, IN2P3-CNRS, Bât. 108, F-91405 Orsay Campus, France
A. Traverse
Affiliation:
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, IN2P3-CNRS, Bât. 108, F-91405 Orsay Campus, France
J. Chaumont
Affiliation:
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, IN2P3-CNRS, Bât. 108, F-91405 Orsay Campus, France
M. Gasgnier
Affiliation:
UPR 210 CNRS Bellevue, 1 Place A. Briand, F-92195 Meudon Cedex, France
S. Megtert
Affiliation:
Laboratoire de Physique des Solides, Bât, 510, Université Paris XI, F-91405 Orsay Cedex, France
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Abstract

The evolution of atomic composition, atomic depth distribution, and structural states of La(OH)3/Cu bilayers prepared by electron gun evaporation and submitted to ion beam irradiation is described. Chemical reactivity of La with O and H is evidenced in the initially deposited La/Cu bilayer, despite the fact that the pure La layer is coated with a thick Cu layer. Ion beam mixing with energetic Au ions, at 300 K and 700 K, results in breaking down the La–O–H bonds, while Cu atoms are knocked into the layer. There is a depth redistribution of the different atomic species, with formation of nonidentified phases.

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Articles
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Journal of Materials Research , Volume 5 , Issue 9 , September 1990 , pp. 1970 - 1975
Copyright
Copyright © Materials Research Society 1990

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