BismuthVanadate temp PinPointMode HOPG Water Led DeoxyribonucleicAcid Magnetic CaMnO3 LiftMode Aluminum Non-ContactMode GaN KPFM PolyimideFilm cooling ScanningSpreadingResistanceMicroscopy SFAs epitaxy Nickel silicon_oxide DNA Step Scratch 2-vinylpyridine Electronics LMF AdhesionForce PolymerBlend SThM Floppy Techcomp Phenanthrene Tungsten light_emission