Epitaxial optimization of atomically smooth Sr3Al2O6 for freestanding perovskite films by molecular beam epitaxy

H.Y. Sun,C.C. Zhang, J.M. Song,J.H. Gu,T.W. Zhang, Y.P. Zang,Y.F. Li, Z.B. Gu,P. Wang,Y.F. Nie

Thin Solid Films（2020）

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摘要

•Surface smoothness of Sr3Al2O6 is extremely sensitive to the Sr/Al ratio.•Molecular beam epitaxy allows the epitaxial optimization in real-time.•Optimal growth condition exhibits clear signatures in RHEED patterns and oscillations.•Atomically smooth freestanding perovskites are efficiently fabricated.

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关键词

smooth sr3al2o6,perovskite films,epitaxial optimization

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