Calcite LateralPFM ito_film Leakage PtfeMembrane Ram mfm_amplitude China ring shape AEAPDES LaAlO3 FastScan LightEmission Laser University_of_Regensburg HafniumDioxide LiNbO3 CuFoil Perovskite EFM Transparent Magnetic Force Microscopy VortexCore NiFe small_scan Piezoresponse Sulfur Force-distance AM_KPFM CHRYSALIS_INC Bismuth temperature_control OpticalWaveguides Pore Temperature