Spincast PhthalocyaninePraseodymium BismuthFerrite Perovskite Titanate HfO2 PS_PVAC polymeric_arrays self_assembly hard_disk Device Ceramics Leakage piezoelectric force microscopy PECurve GaP frequency_modulation Celebration multi_layer LiNbO3 cross section MultiLayerCeramicCapacitor FailureAnalysis amplitude_modulation Spain Grain FM_SKPM IMT_Bucharest AM-KPFM Morphology EFMAmplitude Zagreb LiquidCrystal OpticalWaveguide Singapore