ULCA Bismuth multi_layer Calcite HfO2 MeltingPoint AM-KPFM Copolymer Blend Worcester_Polytechnic_Institute PpLdpe hard_disk_media Photovoltaics Calcium Gallium_Arsenide aluminum_nitride non_contact Composite PtfeMembrane TiO2 LiBattery Glass #Materials Sidewall LiftHeight Polyvinylidene_fluoride Bmp HDD molecule block_copolymer Copper Lift cross section Cell thermal_conductivity