Polystyrene Hole vertical_PFM HfO2 ferromagnetic Imprint Inorganic fluorocarbon SrTiO3 ForceDistanceSpectroscopy PhaseTransition IMT_Bucharest Lanthanum_aluminate ForceVolumeMapping IndiumTinOxide temperature controller AFM Force-distance Nanofiber ring shape SSRM ThinFilm Neodymium Tapping sputter TappingMode 2d_materials Ca10(PO4)6(OH)2 LiBattery PANI Ni-FeAlloy Blend Roughness DataStorage nanobar Fet