Cobalt-dopedIronOxide Gallium_Arsenide CuFoil PhthalocyaninePraseodymium kelvin probe force microscopy temperature controller AFM LowDensityPolyethylene PolymerBlend piezoelectric force microscopy Perovskite NiFe Vinylpyridine mechanical property hard_disk FrictionalForceMicroscopy Foil FastScan Praseodymium Annealed Sulfur HexagonalBN HighResolution Copper MagneticForceMicroscopy nanobar C60H122 StyreneBeads SmallScan medical Potential ThinFilm Regensburg Magnetostrictive Tape CaMnO3