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- W2074290272 abstract "Abstract The Ge segregation mechanism during Si/Ge multilayer growth has been investigated using medium-energy ion scattering (MEIS) and computer simulation with the stochastic Monte Carlo technique. We found that Ge atoms segregated not only in the topmost layer but also in the second and third layers. The segregation probability is found to be quadratic in the Ge concentration at the surface. The exchange between the second and the third layer also occurs readily during growth, even although these layers are buried and therefore are not expected to reduce the surface free energy. We found that the activation energy for the site exchange process at the subsurface is lower than the previously believed value, and flip-flop exchange at the subsurface plays a more important role in the Ge segregation process." @default.
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- W2074290272 date "1999-12-01" @default.
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- W2074290272 title "Ge segregation mechanism during Si/Ge multilayer growth" @default.
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- W2074290272 doi "https://doi.org/10.1016/s0040-6090(99)00479-4" @default.
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