self_assembly PiezoelectricForceMicroscopy Step Regensburg hetero_structure SrTiO3 MetalCompound doped Bacteria ConductiveAFM NtuEee VerticalPFM FrictionForce polymeric_arrays LateralForce MonoLayer Melt C_AFM Ceramics Ceramic ForceDistanceSpectroscopy frequency_modulation Switching KAIST CVD multi_layer STM Calcite ItoGlass lift_mode ElectrostaticForceMicroscopy FloppyDisk BCZT fluoroaalkane ThermalDetectors