HexagonalBN MfmPhase KAIST NusEce GalliumPhosphide doped HexagonalBoronNitride CompactDisk Annealing SurfaceOxidation TungstenThinFilmDeposition Dopped Glass FailureAnalysis 3-hexylthiophene membrane Layer hard_disk_media VerticalPFM Thermal Optoelectronic Regensburg kelvin probe force microscopy LowDensityPolyethylene vertical_PFM NeodymiumMagnets HBN flakes ConductiveAFM ConductingPolymer Moire ShenYang ContactModeDot light_emitting Implant