Pyroelectric MechanicalProperty nanobar HOPG MLCC EPFL ContactModeDots KelvinProbeForceMicroscopy thermal_conductivity HardDisk CP-AFM CNT Electronics HydroGel Ptfe Defect HACrystal Thermoplastic_polyurethane LateralForceMicroscopy MechanicalProperties HiVacuum FastScan Organic domain_switching PDMS Sphere ULCA Electrical&Electronics GaN Fujian HexagonalBoronNitride Polytetrafluoroethylene BCZT BoronNitride Hole