MetalCompound LithiumNiobate ContactModeDots Tin disulfide Nanostructure Wildtype ScratchMode PolyvinylAcetate Phosphide Materials ForceVolume C_AFM EvatecAG Polymer FailureAnlaysis Step plastic PFM organic_polymer NUS_NNI_Nanocore PolyvinylideneFluoride DIWafer University_of_Regensburg strontiu_titanate MagneticForce AnodizedAluminumOxide Phthalocyanine BaTiO3 NUS 2dMaterials Conduct Pinpoint INSP IIT-chennai Forevision