Magnetostrictive Defect OpticalModulator BiasMode HDD F14H20 ScratchMode epitaxy AAO exfoliate Hexylthiophene ConductiveAFM PtfeFilter LateralPFM HexagonalBN Workfunction Electrical&Electronics SiliconCrystal atomic_steps graphene_hybrid Battery MESA structure LFM FFM PVAP3HT Pore Mosfet Film Hydroxyapatite molecules Scratch ElectroChemical layers PFM PtfeMembrane