DOE MoS2 OxideLayer Iron KAIST Defects pulsed_laser_deposition EPFL LiquidCrystal lithography CalciumHydroxide Anneal cross section Strontium LateralForceMicroscopy KPFM Change Boron LMF hard_disk_media MolecularSelfAssembly Silicon phase_change Alkane Polyethylene oxide_layer Wildtype Piranha LifeScience Switching MembraneFilter temperature controller AFM Tungsten_disulfide CrossSection CompactDisk