BiFeO3 Liquid PvdfBead piezoelectric force microscopy ForceMapping Co/Cr/Pt SoftSample BlockCopolymer CeNSE_IISc INSPParis KevlarFiber self-assembly oxide_layer Holes MoS2 Microchannel HiVacuum PatternedSapphireSubstrat Molybdenum Temperature OpticalModulator NeodymiumMagnets SingleCrystal Ferroelectric FFM ScanningIon-ConductanceMicroscopy Graphite Vortex graphene_hybrid Writing molecular_self_assembly hydrocarbon Imprint SRAM domain_switching