TipBiasMode MagneticPhase amplitude_modulation Lateral_Force_Microscopy light_emitting Nanopattern HBN vertical_PFM HACrystal Korea Materials AdhesionForce cross section SiliconOxide BlockCopolymer StyreneBeads plastic Pvdf multi_layer FAPbI3 Modulus Bacteria Blood Annealing CeNSE_IISc Microchannel TiO2 WWafer Polydimethylsiloxane FrequencyModulation Piezoelectric TemperatureControllerAFM Steps Ananth AM-KPFM