UnivCollegeLondon hard_disk_media ContactMode PMNPT Ceramics Vortex AtomicSteps Polydimethylsiloxane Permalloy Workfunction UTEM F14H20 ForceVolume Korea ScratchMode Molybdenum_disulfide STO Dr.JurekSadowski Bacteria NeodymiumMagnets PVAC ScanningThermalMicroscopy PtfeMembrane Silver Indium_tin_oxide Granada temp_control BiasMode HighAspect Reading CBD DIWafer Graphene Litho light_emitting