HexagonalBN solar_cell Magnetic Force Microscopy AlkaneFilm PinpointPFM FrictionalForceMicroscopy Ptfe Yeditepe_University Vortex BiasMode Formamidinium_lead_iodide STO CopperFoil ring shape EvatecAG BoronNitride LMF Bacterium norganic MoirePattern PolycrystallineFerroelectricBCZT IRDetector C36H74 GlassTemperature fluoroaalkane PhthalocyaninePraseodymium Bmp NCM StrontiumTitanate Magnets Neodymium Trench HACrystal PinPointMode AM_KPFM