TiO2 Steps Organic polymeric_arrays Conductance MolybdenumDisulfide oxide_layer Memory Beads Reduction ThinFilm Semiconductor Hafnia Polystyrene mono_layer BTO domain_switching temp SolarCell LaAlO3 fluoroaalkane EPFL nanobar Calcite Magnetic ito_film Wang Oxide PhthalocyaninePraseodymium Device Molybdenum_disulfide Lattice molecular_beam Glass ItoGlass