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Characterization of atomic force microscopy written conducting nanowires at LaAlO3/SrTiO3 interfaces
Author(s) -
Margherita Boselli,
Danfeng Li,
Wei Liu,
A. Fête,
Stefano Gariglio,
J.M. Triscone
Publication year - 2016
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.4941817
Subject(s) - nanowire , realization (probability) , characterization (materials science) , nanostructure , atomic force microscopy , materials science , kelvin probe force microscope , nanotechnology , conductive atomic force microscopy , microscopy , optoelectronics , condensed matter physics , physics , optics , statistics , mathematics
The realization of conducting nanostructures at the interface between LaAlO3 and SrTiO3 is an important step towards the realization of devices and the investigation of exotic physical regimes. We present here a detailed study of the conducting nanowires realized using the atomic force microscopy writing technique. By comparing experiments with numerical simulations, we show that these wires reproduce the ideal case of nanoconducting channels defined in an insulating background very well and that the tip bias is a powerful knob to modulate the size of these structures. We also discuss the role of the air humidity that is found to be a crucial parameter to set the size of the tip-sample effective interaction area

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