CopperFoil TipBiasMode Magnetic Force Microscopy LowDensityPolyethylene plastics EvatecAG chemical_compound SolarCell NUS_Physics TiO2 LiquidCell CastIron Pores neodymium_magnets Trench BloodCell LateralForce Workfunction Nanopattern PolymerBlend Friction Layer Chrome PtfeMembrane Forevision Wang small_scan Hexylthiophene Magnets Cross-section Display LifeScience MechanicalProperties LiftHeight TemperatureControllerAFM