PatternedSapphireSubstrat Regensburg InLiquid Polyimide PinpointNanomechanicalMode Magnetic Force Microscopy PolyStylene HiVacuum MESA structure Filter SmallScan BiVO4 SKPM NUS ring shape Ferroelectric Sic GaP Pvdf STM PUR FM_KPFM IndiumTinOxide PECurve Holes Pzt Corrosion Optoelectonics Bmp Graphene Platinum Jason BoronNitride HBN Glass