HafniumDioxide Heating SingleCrystal Electrical&Electronics ForceMapping Multiferroic_materials LiBattery Hexatriacontane polyvinyl acetate BFO biocompatible ConductiveAFM Force-distance molecules SmallScan cannabidiol Electical&Electronics Reduction ShenYang Potential Roughness AtomicLayer vertical_PFM FrictionalForce NUS_Physics Bmp Bacteria fluoroaalkane SingleLayer Metal Solution STM Boundary hard_disk CBD