CaMnO3 Beads Microchannel Polyurethane StrontiuTitanate LateralPFM Indent ElectrostaticForceMicroscopy VortexCore PinpointNanomechanicalMode Phthalocyanine Ni81Fe19 layers Mfm HanyangUniv Hair HighAspect Pores Dimethicone PolyimideFilm SingleCrystal HexagonalBN Tin sulfide Silver Holes mono_layer Strontium Cobalt-dopedIronOxide SKPM thermal_conductivity IcelandSpar SoftSample C60H122 AM-KPFM Chemical Vapor Deposition