Dipartimento di Fisica, Università degli Studi di Milano, I-20122 Milano, Italy ; Interdisciplinary Laboratories for Advanced Materials Physics (i-LAMP) and Dipartimento di Matematica e Fisica, Università Cattolica, I-25121 Brescia, Italy.
Interdisciplinary Laboratories for Advanced Materials Physics (i-LAMP) and Dipartimento di Matematica e Fisica, Università Cattolica, I-25121 Brescia, Italy.
Beilstein J Nanotechnol. 2014 Apr 17;5:494-500. doi: 10.3762/bjnano.5.57. eCollection 2014.
The instantaneous displacement, velocity and acceleration of a cantilever tip impacting onto a graphite surface are reconstructed. The total dissipated energy and the dissipated energy per cycle of each excited flexural mode during the tip interaction is retrieved. The tip dynamics evolution is studied by wavelet analysis techniques that have general relevance for multi-mode atomic force microscopy, in a regime where few cantilever oscillation cycles characterize the tip-sample interaction.
重建了悬臂尖端撞击石墨表面时的瞬时位移、速度和加速度。获取了在尖端相互作用过程中每个激励弯曲模式的总耗散能量和每个循环的耗散能量。通过小波分析技术研究了尖端动力学的演化，该技术对于多模态原子力显微镜具有普遍的意义，在这种情况下，几个悬臂振动周期就可以描述尖端-样品相互作用。
