MoS2 Ferrite Treatment Cross-section Self-assembledMonolayer EPFL Hair self-assembled_monolayer Polystyrene Strontium BiFeO3 Spain SThM Sperm PrCurve MoirePattern dielectric trench PhaseTransition Polypropylene Transparent Vortex 2dMaterials fluoroalkane LiftMode Dimethicone OpticalElement FFM SSRM ChemicalCompound ContactModeDots Memory suspended_graphene AdhesionForce Plug lithography