Hair OpticalElement CuSubstrate Vanadate HACrystal StrontiumTitanate Mosfet Annealed CuFoil PECurve Sio2 Wafer LogAmplifier FM-KPFM nanobar PetruPoni_Institute HfO2 optoelectronics ScanningIon-ConductanceMicroscopy DeflectionOptics pulsed_laser_deposition Strontium SThM Holes PhaseTransition LiquidImaging PDMS Sidewall AIN Scratch flakes PinpointPFM ShenYang atomic_steps LFM