Epoxy Transparent VerticalPFM Growth AmplitudeModulation Ferrite EvatecAG KAIST PolycrystallineFerroelectricBCZT BariumTitanate FloppyDisk Phthalocyanine Terrace PUR NeodymiumMagnets NUS SmalScan TappingMode pinpoint mode Optoelectronic bias_mode Fet Temasek_Lab LiftHeight domain_switching HighAspect UnivCollegeLondon Optical WS2 INSP Cobalt-dopedIronOxide NUS_Physics tip_bias_mode chemical_compound STM