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24 April 2024

» arxiv » 1110.5410

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Atomic-scale visualization of initial growth of homoepitaxial SrTiO3 thin film on an atomically ordered substrate
Ryota Shimizu ; Katsuya Iwaya ; Takeo Ohsawa ; Susumu Shiraki ; Tetsuya Hasegawa ; Tomihiro Hashizume ; Taro Hitosugi ;
Date:	25 Oct 2011
Abstract:	The initial homoepitaxial growth of SrTiO3 on a (surd13 imessurd13) - R33.7{deg}SrTiO3(001) substrate surface, which can be prepared under oxide growth conditions, is atomically resolved by scanning tunneling microscopy. The identical (surd13 imessurd13) atomic structure is clearly visualized on the deposited SrTiO3 film surface as well as on the substrate. This result indicates the transfer of the topmost Ti-rich (surd13 imessurd13) structure to the film surface and atomic-scale coherent epitaxy at the film/substrate interface. Such atomically ordered SrTiO3 substrates can be applied to the fabrication of atom-by-atom controlled oxide epitaxial films and heterostructures.
Source:	arXiv, 1110.5410
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