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Dynamic scaling behavior has been observed during the growth of Fe films on Fe(001) using high-resolution low-energy electron diffraction technique. The interface width grows with time according to the power law w{~}t^β, with {β}=0.22±{}0.02. Time-invariant self-affine behavior on the short-range scale has also been observed with the roughness exponent {α}=0.79±{}0.05. The time-invariant characteristic agrees with the recent prediction based on the dynamic scaling theory. From the measured growth exponents, we suggest that the growth of Fe film is more consistent with a conservative growth process.
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He et al. (1992) studied this question.
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