self-assembly MechanicalProperty Sphere atomic_layer Croatia NCM suspended_graphene Scratch MfmPhase Solar LightEmiting SICM Aluminium_Oxide Monisha PS_PVAC amplitude_modulation STM MagneticPhase Semiconductor Pinpoint PFM Glass Ferroelectric HardDisk HDD Lift Fet Wang Modulus HACrystal Collagen CrAu semifluorinated_alkane Growing KPFM ContactModeDots