Pattern Flake nanomechanical China Ni-FeAlloy Ito Insulator Granada vertical_PFM LateralPFM semifluorinated_alkanes Reading Optic Polyvinylidene_fluoride ForceVolumeImage AdhesionEnergy fifber food PvdfBead ScanningThermalMicroscopy SiliconOxide HOPG tip_bias_mode PinPointMode domain_switching Chungnam_National_University Domain conductive Polyethylene Al2O3 Fiber Praseodymium LateralForce Gold Ananth