fe_nd_b MeltingPoint lift_mode polyvinyl acetate ContactModeDots IndiumTinOxide Sio2 MembraneFilter SrO PiezoelectricForceMicroscopy block_copolymer BiasMode LFM molecule temperature controller AFM Chromium nanomechanical Composite rubber PUR Friction Filter Polypropylene Edwin BFO pinpoint mode VerticalPFM Monisha IMT_Bucharest Calcium CuParticle TipBiasMode OxideLayer Pore ContactMode