BaTiO3 Floppy PhaseChange block_copolymer Zhi Tapping rubber AM_KPFM SrTiO3 KelvinProbeForceMicroscopy Galfenol Hafnia AmplitudeModulation atomic_layer ContactMode ConductingPolymer cross section Defects Non-ContactMode self_assembly FastScan TyphimuriumBiofilm Ucl SingleCrystal Dimethicone Regensburg PolymerBlend BlockCopolymer Patterns Mechinical temperature controller AFM PyroelectricDetector PVA food gallium_nitride