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Atomic Transport by Ion Beam Mixing in the Radiation Enhanced Diffusion Region

Published online by Cambridge University Press:  21 February 2011

S. M. Jung ,
G. S. Chang ,
J. H. Joo ,
J. J. Woo ,
K. S. Jang  and
C. N. Whang
S. M. Jung
Affiliation:
Department of Physics, Yonsei University, Seoul 120-749, Korea.
G. S. Chang
Affiliation:
Department of Physics, Yonsei University, Seoul 120-749, Korea.
J. H. Joo
Affiliation:
Department of Physics, Yonsei University, Seoul 120-749, Korea.
J. J. Woo
Affiliation:
Department of Physics, Chonnam National University, Kwangju 500–757, Korea
K. S. Jang
Affiliation:
Korea Electric Power Corporation Research Center, Taejon 305–380, Korea
C. N. Whang
Affiliation:
Department of Physics, Yonsei University, Seoul 120-749, Korea.
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Abstract

In order to study atomic transport in the radiation enhanced diffusion (RED) region, Pd/Co bilayers were intermixed by 80keV Ar+ in the temperature range from 90 K to 700 K. The critical temperature for the onset of RED was found to be ∼ 400 K, and the transported amount of Pd atoms was found to be always larger than that of Co in the RED region. This result cannot be explained by pre-existing models. Thus we have developed a comprehensive model for atomic transport in the RED region including size effect, damage controlled effect, and cohesive energy effect.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 354: Symposium A – Beam Solid Interactions for Materials Synthesis and Characterization , 1994 , 21
Copyright
Copyright © Materials Research Society 1995

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