Tin disulfide PinpointNanomechanicalMode PatternedSapphireSubstrat BFO EFM Pvdf frequency_modulation MultiferroicMaterials FAPbI3 molecular_beam Hair SiWafer Foil MagneticForce LateralForceMicroscopy Current Zagreb Ferroelectric piezoelectric force microscopy Metal SrO Materials temp_control Imprint self_healing Celebration domain_switching YszSubstrate electrospinning PinPointMode HexagonalBoronNitride DeflectionOptics BTO SmallScan Bio