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Title: Thermal stability of dysprosium scandate thin films
Authors: Adelmann, Christoph
Van Elshocht, Sven
Franquet, Alexis
Conard, Thierry
Richard, Olivier
Bender, Hugo
Lehnen, Peer
De Gendt, Stefan #
Issue Date: Mar-2008
Publisher: American Institute of Physics
Series Title: Applied Physics Letters vol:92 issue:11 pages:-
Article number: 112902
Abstract: The thermal stability of DyScO3 thin films in contact with SiO2 or HfO2 during annealing up to 1000 degrees C has been studied. It is found that DyScO3/SiO2 stacks react during annealing and a phase separation into polycrystalline Sc-rich (and relatively Si-poor) DySc silicate on top of an amorphous Dy-rich DySc silicate is observed. In contrast, DyScO3 is found to be thermodynamically stable in contact with HfO2 and to recrystallize upon annealing. These results demonstrate that the previously reported high crystallization temperature of > 1000 degrees C for DyScO3 is not an intrinsic material property but caused by silicate formation. (c) 2008 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
# (joint) last author

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