HiVacuum TemperatureControllerStage GaN Yeditepe BismuthFerrite PatternedSapphireSubstrat SingleLayer Cross-section NCM Jason Copper nanobar Vac chemical_compound Ram semifluorinated alkane EPFL SurfaceOxidation LowDensityPolyethylene PUR Wafer EvatecAG Sic KAIST Magnetic Polymer Lattice Stiffness sputter Ferrite Mobile CarbonNanotube rubber DomainSwitching align