Forevision DataStorage Christmas Bacteria Ferrite food Fet molecular_beam PatternedSapphireSubstrat Glass atomic_layer DIWafer Etch silicon_oxide GaN Roughness SiliconeOxide plastic Sphere Cross-section self_assembly Workfunction FrictionalForce Magnetostrictive gallium_nitride Polytetrafluoroethylene TemperatureControllerStage PUR I-VSpectroscopy BariumTitanate Switching Ni-FeAlloy Tape strontiu_titanate MagneticArray