self-assembly TungstenDeposition SolarCell PFM HexagonalBN 2dMaterials contact Sio2 Lattice Nanotechnology SiliconeOxide PtfeMembrane bias_mode HanyangUniv MfmAmplitude CHRYSALIS_INC SrO phase_change SetpointMode thermal_property Liquid Varistor fluoroalkane Vortex SingleCrystal semifluorinated alkane AmplitudeModulation LateralForceMicroscopy ConductiveAFM hard_disk_media MagneticForceMicroscopy Aluminum Iron Resistance Bacterium