BaTiO3 Magnetic Force Microscopy Worcester_Polytechnic_Institute Polymer Pattern TransitionMetal IIT-chennai #Materials TemperatureControlledAFM ThermalConductivity MfmAmplitude Silver FrequencyModulation PolyvinylideneFluoride INSP Mfm PinpointNanomechanicalMode Wafer fe_nd_b exfoliate HfO2 Pores epitaxy Phase ForceDistanceSpectroscopy Temperature Wildtype Platinum MembraneFilter Tungsten Cobalt ConductiveAFM NCM\ LateralForce NTU