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Socoliuc et al. showed in their seminal paper that the potential energy corrugation (E0 ) experienced by the AFM tip apex as it is being slid over an atomically flat, crystalline surface can be periodically (specifically, in a sinusoidal fashion) modulated by electrostatic and/or mechanical actuation of the contact region in the direction perpendicular to the sample surface, leading to virtually vanishing friction (i.e., superlubricity) at well-defined actuation frequencies.

ÏëÇë½Ìһϸ÷λÀÏʦͬѧ£¬Õâ¾ä»°Ó¦¸ÃÔõô·­Ò룬ÓÈÆäÊÇ1. the potential energy corrugation    2. the effective energy landscape corrugation  ÕâÁ½¸ö´Ê×飬Èí¼þ·­ÒëÊÇÄÜÁ¿ÆðÖ壬û¿´¶®Ê²Ã´Òâ˼£¬´óËÄÐÂÊÖ¸Õ¸ÕÉÏ·Çë¼ûÁÂ

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