ElectrostaticForceMicroscopy Sio2 Sulfur LiNbO3 LateralForceMicroscopy Spincast STO Nanopattern CrossSection Conductance organic_polymer Neodymium Sadowski AIN Ferrite molecular_beam Epoxy PetruPoni Fujian Potential aluminum_nitride PDMS layers Patterns Al2O3 Pzt University_of_Regensburg PvdfBead PECurve ScanningTunnelingMicroscopy Polyethylene Gold HexagonalBoronNitride Aluminum Chemical_Vapor_Deposition