BiFeO3 Hydroxyapatite Vacuum AtomicSteps MagneticPhase Piezo LiftMode Boundary Aluminum SiliconCrystal LiNbO3 single_layer UnivOfMaryland Multiferroic_materials Force-distance Biofilm hydrocarbon #EC Hafnium_dioxide Optoelectonics temp_control FloppyDisk polyvinyl acetate self_healing LifeScience EvatecAG ThinFilm Conducting ScanningThermalMicroscopy sputter SKPM ForceDistanceSpectroscopy GranadaUniv Cobalt Non-ContactMode