AM-KPFM NTU Grain Hair domain_switching DataStorage Phthalocyanine CeNSE_IISc PECurve Electical&Electronics exfoliate Pyroelectric STM Yeditepe Varistor HfO2 Piezo Ucl LaAlO3 CrystalGrowing Subhajjit IcelandSpar UnivOfMaryland Forevision MoirePattern mfm_amplitude kelvin probe force microscopy Mechanical&nanotechnology Zagreb MfmAmplitude EFMAmplitude Laser Switching self-assembled_monolayer optoelectronics