Physics 19 Materials 18 Electronics 13 Materials science 13 Optical and Electronic Materials 12 Optical materials 12 Materials Science 9 Nanotechnology 9 Characterization and Evaluation of Materials 6 Metallic Materials 6 Metals 6 Semiconductors 6 Magnetic materials 5 Magnetism 5 Magnetism, Magnetic Materials 5 Nanostructured materials 5 Optics, Lasers, Photonics, Optical Devices 5 Strongly Correlated Systems, Superconductivity 5 Superconductivity 5 Superconductors 5 Applied and Technical Physics 4 Building materials 4 Machinery 4 Materials Engineering 4 Nanochemistry 4 Nanostructures 4 Nanotechnology and Microengineering 4 Structural Materials 4 Amorphous substances 3 Ceramics 3