Layer Lateral Copolymer Regensburg StrontiumTitanate AAO Floppy Modulus strontiu_titanate Worcester_Polytechnic_Institute Thermoplastic_polyurethane MESA structure Vanadate self_assembly Conductive AFM Step ferromagnetic YszSubstrate Mfm Indent Bmp Domain TemperatureControllerAFM nanobar Beads MetalCompound medical Collagen Mechanical SPMLabs HexagonalBN NCM\ 3-hexylthiophene PolymerBlend Nickel