StrontiumTitanate MESA structure Mobile Al2O3 Etch Roughness Genetic PVAC atomic_steps DomainSwitching MLCC ForceVolumeImage Flake FloppyDisk NUS_NNI_Nanocore strontiu_titanate CeramicCapacitor SThM Gold epitaxy MBE Heating Gallium OrganicSemiconductor Tape kelvin probe force microscopy GaAs Aggregated_molecules Hexylthiophene NanoLithography DataStorage ContactModeDot molecular_self_assembly BloodCell norganic