mfm_amplitude nanobar AlkaneFilm Stiffness FM-KPFM SKPM PolyStylene SolarCell Imprint contact Tape CastIron Bismuth Copper AM_SKPM Ucl PatternedSapphireSubstrat strontiu_titanate Liquid Strontium HBN MetalCompound Step PVAC SmallScan Hole PolyvinylAcetate Barium_titanate self-assembly Topography Sadowski GlassTemp Perovskite Gallium StrontiuTitanate