mono_layer LowDensityPolyethylene membrane Polyvinylidene_fluoride IMT_Bucharest MagneticPhase MechanicalProperties cannabinoid Optoelectronic Tapping Piezoresponse Resistance Polypropylene DIWafer ScratchMode Edwin BiFeO3 NiFe bias_mode Phthalocyanine C_AFM conductive PatternedSapphireSubstrat FAPbI3 Electrode MoirePattern hard_disk_media Optical Conductive AFM University_of_Regensburg Strontium Reduction fe_nd_b ThermalDetectors Crystal