Vortex Conductance fluorocarbon OxideLayer hard_disk_media C36H74 UnivCollegeLondon Phenanthrene Chrome Grain BloodCell Change BariumTitanate Adhesive Platinum BiasMode GaAs temperature controller AFM Gong Boron FM-KPFM StyreneBeads PolyStylene Flake ElectroChemical Worcester_Polytechnic_Institute Kevlar ring shape GlassTemp heterojunctions Topography Polyimide PrCurve I-VSpectroscopy C60H122