MfmPhase Non-ContactMode University_of_Regensburg IVSpectroscopy Conduct Bacteria Dimethicone PhaseImaging 2dMaterials PMNPT VerticalPFM Electical&Electronics Bmp Tin disulfide DeoxyribonucleicAcid PhaseTransition ReflexLens GaAs Ptfe Polyvinylidene CrAu Film oxide_layer amplitude_modulation Domain DomainSwitching Techcomp Polyvinylidene_fluoride HACrystal SoftSample thermoplastic_elastomers pinpoint mode AtomicLayer Lateral_Force_Microscopy StainlessSteel