AM_SKPM molecule blended polymers Scratch neodymium_magnets phase_change VortexCore ScanningSpreadingResistanceMicroscopy Tin sulfide Step HDD Defect KelvinProbeForceMicroscopy Hexylthiophene Indium_tin_oxide FrictionalForce Alloy SurfaceOxidation BreastCancerCell UnivOfMaryland IISCBangalore Potential AtomicLayer Roughness CuParticle PolyvinylideneFluoride AtomicSteps InorganicCompound TPU dielectric trench Nickel PhaseChange Aluminium_Oxide GaP FrictionalForceMicroscopy