期刊
JOURNAL OF MATERIALS RESEARCH
卷 17, 期 5, 页码 936-939出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2002.0138
关键词
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Piezoresponse force microscopy (PFM) is one of the most established techniques for the observation and local modification of ferroelectric domain structures on the submicron level. Both electrostatic and electromechanical interactions contribute at the tip-surface junction in a complex manner, which has resulted in multiple controversies in the interpretation of PFM. Here we analyze the influence of experimental conditions such as tip radius of curvature, indentation force, and cantilever stiffness oil PFM image contrast. These results are used to construct contrast mechanism map, which correlate the imaging conditions with the dominant contrast mechanisms. Conditions under which materials properties can be determined quantitatively are elucidated.
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