  Contact hysteresis between sliding interfaces is a widely observed phenomenon
from macro- to nano- scale sliding interfaces. Most of such studies are done
using an atomic force microscope (AFM) where the sliding speed is a few
{\mu}m/s. Here, we present a unique study on stiction between the head-disk
interface of commercially available hard disk drives, wherein vertical
clearance between the head and the disk is of the same order as in various AFM
based fundamental studies, but with a sliding speed that is nearly six orders
of magnitude higher. We demonstrate that although the electrostatic force (DC
or AC voltage) is an attractive force, the AC voltage induced out-of-plane
oscillation of the head with respect to disk is able to suppress completely the
contact hysteresis.
