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Molecular-Beam Epitaxial Growth of Short-Period (001) Al/Ag/Cr Superlattices with Intermediary Ag Layers
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We studied the growth behavior and structures of molecular-beam-epitaxy-grown (001) Al/Ag/Cr superlattices, using reflection high-energy electron and X-ray diffraction analyses. (001) Al/Ag/Cr superlattices with a short period of about 1 nm were successfully grown on Cr buffer layers formed on MgO substrates. Epitaxial growth proceeds
with Al(001)[010]fcc ∥ Ag(001)[010]fcc ∥ Cr(001)[110]bcc. Al layers grow in the layer growth mode when one-monolayer Ag layers are formed on Cr underlayers, although Al deposited directly on Cr layers grows in the Stranski-Krastanov mode. Moreover, (001) growth of the Al/Ag/Cr superlattices is stable when the Cr layers are three monolayers in thickness, despite the fact that the growth of the (001) Al/Ag superlattices is rather unstable.
Title: Molecular-Beam Epitaxial Growth of Short-Period (001) Al/Ag/Cr Superlattices with Intermediary Ag Layers
Description:
We studied the growth behavior and structures of molecular-beam-epitaxy-grown (001) Al/Ag/Cr superlattices, using reflection high-energy electron and X-ray diffraction analyses.
(001) Al/Ag/Cr superlattices with a short period of about 1 nm were successfully grown on Cr buffer layers formed on MgO substrates.
Epitaxial growth proceeds
with Al(001)[010]fcc ∥ Ag(001)[010]fcc ∥ Cr(001)[110]bcc.
Al layers grow in the layer growth mode when one-monolayer Ag layers are formed on Cr underlayers, although Al deposited directly on Cr layers grows in the Stranski-Krastanov mode.
Moreover, (001) growth of the Al/Ag/Cr superlattices is stable when the Cr layers are three monolayers in thickness, despite the fact that the growth of the (001) Al/Ag superlattices is rather unstable.
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