Plug GalliumPhosphide PyroelectricDetector TiO2 PiezoelectricForceMicroscopy Cross-section Sio2 Leakage Device WPlug Mechanical ElectrostaticForceMicroscopy StrontiumTitanate optoelectronics SoftSample AM-KPFM Graphite temp_control Polarization HardDiskMedia MagneticForceMicroscopy Optic Ananth hard_disk Optical Polyimide heterojunctions ImideMonomer Array NCM Celebration Led rubber GranadaUniv Butterfly