oxide_layer Indent FM_SKPM cannabis LeakageCurrent NiFe Stiffness Topography AdhesionForce Mobile FrictionForce Patterns Piranha polyvinyl acetate LDPE SiliconOxide Crystal LiquidCrystal BFO Change Au111 Piezoresponse BiFeO3 hard_disk_media HOPG high_resolution Monisha MonoLayer Insulator SThM fluorocarbon StrontiumTitanate amplitude_modulation SRAM NUS_Physics