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Surface and defect structure of oxide nanowires on SrTiO3.

Abstract:

Processing the SrTiO(3)(001) surface results in the self-assembly of reduced titanate nanowires whose widths are approximately 1 nm. We have imaged these nanowires and their defects at elevated temperatures by atomic resolution scanning tunneling microscopy. The nanowire structure is modeled with density functional theory, and defects observed in the center of the nanowire are determined to be Ti(4)O(3) vacancy clusters. The activation energy for Ti(4)O(3) vacancy cluster diffusion is explici...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
Journal:
Phys Rev Lett
Volume:
107
Issue:
8
Pages:
086102
Publication date:
2011-08-19
EISSN:
1079-7114
URN:
uuid:7c65c82e-4382-4447-bd85-be78c1b51ccc
Source identifiers:
180410
Local pid:
pubs:180410
Language:
English

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