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Title: Solid phase epitaxy of SrTiO3 on (Ba,Sr)O/Si(100): The relationship between oxygen stoichiometry and interface stability
Authors: Norga, GJ ×
Marchiori, C
Rossel, C
Guiller, A
Locquet, Jean-Pierre
Siegwart, H
Caimi, D
Fompeyrine, J
Seo, Jin Won
Dieker, C #
Issue Date: 2006
Publisher: AMER INST PHYSICS
Series Title: Journal of Applied Physics vol:99 issue:8 pages:1-7
Conference: date:Politecn Milan, LNESS, Dipartimento Fis, I-22100 Como, Italy; IBM Res GmbH, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland; Ecole Polytech Fed Lausanne, IPMC, CH-1015 Ecublens, Switzerland
Article number: 084102
Abstract: Key aspects of the growth process of epitaxial SrTiO3 with crystalline interface on silicon are outlined. An important step in this process is the solid phase epitaxy in ultrahigh vacuum of amorphous SrTiO3 on top of a few monolayer thick, low-temperature grown, epitaxial (Ba,Sr)O/Si(100) template. Insufficient oxygen supply during the SrTiO3 deposition step causes the formation of amorphous alkaline-earth silicates and TiSix at the Si/epitaxial oxide interface during ultrahigh vacuum annealing. Performing SrTiO3 deposition in excess O-2, this interfacial reaction is suppressed, and a metal-insulator-semiconductor capacitance equivalent to 0.5 nm of SiO2 is obtained for a 10 unit cell SrTiO3/1 unit cell (Ba,Sr)O/p-Si(100) stack. (C) 2006 American Institute of Physics.
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Physical Metallurgy and Materials Engineering Section (-)
× corresponding author
# (joint) last author

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