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Formation and Structure of Thin Mo Layers and Mo-Ni Multilayers on Ni(001) by Molecular Beam Epitaxy

Published online by Cambridge University Press:  28 February 2011

Y.H. Lee ,
R.P. Burns ,
J.B. Posthill  and
K.J. Bachmann
Y.H. Lee
Affiliation:
North Carolina State University, Dept. of Materials Science and Engineering, Raleigh, NC 27695-7907
R.P. Burns
Affiliation:
Research Triangle Institute, Research Triangle Park, NC 27709-2194 North Carolina State University, Dept. of Physics, Raleigh, NC 27695-8202
J.B. Posthill
Affiliation:
Research Triangle Institute, Research Triangle Park, NC 27709-2194
K.J. Bachmann
Affiliation:
North Carolina State University, Dept. of Materials Science and Engineering, Raleigh, NC 27695-7907
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Abstract

The growth of Mo overtayers and Mo-Ni multilayers on single crystal Ni(001) substrates is described. The nucleation and growth processes of these thin films were analyzed by LEED, XPS, AES and SEM and High Resolution AES investigations without breaking vacuum. Growth of Mo-Ni multilayer heterostructures on Ni(001) with ≈20Å periodicity is possible at low temperature (≈200 °C). At high temperature (≈550 °C) the growth proceeds by the Volmer-Weber mechanism preventing the deposition of small period multilayers. Annealing experiments on ultra-thin (<20Å) Mo overiayers deposited at 200 °C show an onset of interdiffusion at ≈ 550°C coupled to the generation of a new surface periodicity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 160 , 1989 , 215
Copyright
Copyright © Materials Research Society 1990

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