Scanning probe nanostructuring ofYBa2Cu3O7:A corrosion induced abrasion
作者:
J. Boneberg,
M. Bo¨hmisch,
M. Ochmann,
P. Leiderer,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 26
页码: 3805-3807
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.120511
出版商: AIP
数据来源: AIP
摘要:
Nanostructuring experiments were performed on aYBa2Cu3O7thin film surface with an atomic force microscope (AFM) with a conductive tip. Measurements of the local conductivity with the AFM tip show that corrosion towards a nonconducting surface occurs on a timescale of hours under ambient conditions. The corroded surface can easily be abraded, whereas the cleanYBa2Cu3O7surface is comparably resistive against mechanical forces. The corrosion is promoted by an electric current at positive sample bias. Thus it can be concluded that the nanostructuring process performed in former experiments with the scanning tunneling microscope consists of two steps: corrosion and succeeding abrasion. ©1997 American Institute of Physics.
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