Physical Review Letters · 2018 · 23 citations · 17 references
Natural SciencesMaterials SciencePhysicsInterface ScienceNanotechnologySurface ScienceAtomic Force MicroscopyContact DynamicsInterface PhysicsNanomechanicsScanning Probe MicroscopySliding ContactAdhesion ForcesAdhesion MechanicsFriction At The NanoscaleHard Disk DrivesHigh-speed Atomic Force MicroscopyHigh-speed Scanning Probe MicroscopyHysteresisNanoscale Interfaces
Contact hysteresis between sliding interfaces is a widely observed phenomenon from macro- to nanoscale sliding interfaces. Most such studies are done using an atomic force microscope (AFM) where the sliding speed is a few μm/s. Here, we present a unique study on stiction between the head-disk interface of commercially available hard disk drives, wherein the 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 6 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 the disk is able to completely suppress the contact hysteresis.
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Martin Dienwiebel, Gertjan S. Verhoeven, Namboodiri Pradeep et al. · Physical Review Letters · 2004 · 1.4K citations
Atomic-Scale Control of Friction by Actuation of Nanometer-Sized Contacts
Anisoara Socoliuc, Enrico Gnecco, Sabine Maier et al. · Science · 2006 · 342 citations