Defect Permalloy ScratchMode thermal_property Polyvinylidene_fluoride dichalcogenide HACrystal BiVO4 EFMAmplitude oxide_layer mechanical_property Magnets Topography CrAu CastIron Chromium Current Photovoltaics HanyangUniv INSP MolybdenumDisulfide LiftHeight HBN LateralForceMicroscopy AtomicSteps FFM LifeScience Korea Wafer bias_mode semifluorinated alkane vertical_PFM LightEmission Ferroelectric SolarCell