Battery Calcium mechanical property KelvinProbeForceMicroscopy Cross-section CalciumHydroxyapatite Polyurethane Magnetostrictive Phthalocyanine Blend YszSubstrate Conductive AFM SAM Epoxy PatternedSapphireSubstrat LifeScience SrO Varistor mechanical_property self-assembly Forevision TiO2 HardDisk Crystal TemperatureControllerStage MBE Nanopattern hetero_structure Litho PS_PVAC Heating MoirePattern Change vertical_PFM layers