Multifrequency, repulsive-mode amplitude-modulated atomic force microscopy
Multifrequency, repulsive-mode amplitude-modulated atomic force microscopy
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DOI:
10.1063/1.2345593
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发表时间:
2006-09-11
影响因子:
4
通讯作者:
Proksch, Roger
中科院分区:
文献类型:
--
作者:
Proksch, Roger
An imaging method where a cantilever is driven at or near two of its flexural resonant eigenmodes is described. For most cantilevers, these eigenmodes are nonharmonic. The cantilever and imaging parameters are chosen such that the tip-sample interactions are repulsive. The driven second eigenmode amplitude and phase show strikingly different contrasts from those same fundamental eigenmode signals on graphite samples imaged in air and lambda-digest deoxyribonucleic acid samples imaged in water. (c) 2006 American Institute of Physics.