Defects hard_disk_media Solution GaP ScanningTunnelingMicroscopy exfoliate Chromium Cobalt-dopedIronOxide Hair OpticalWaveguide RedBloodCell PinPointMode BlockCopolymer Inorganic FrictionalForce Ni81Fe19 H-BN Bacterium alkanes STM Gallium Electrode Calcium Lateral HardDiskMedia IndiumTinOxide Composition MBE LifeScience doped Magnetic Force Microscopy Flake Hexacontane ItoGlass PS_PVAC