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The first-principle approach is designed for the interpretation of the experimental observations and prediction of properties for new nanomaterials. The understanding of physical phenomena requires a description at the atomic scale where size and geometric organization play important roles. The major challenge is to model systems as close as possible to those developed in the laboratory. The complexity both in terms of the geometric structure and chemical composition that comprise the modeling of such systems requires an entire panel of approaches ranging from semi-empirical methods to ab...

Recent discoveries have given rise to a new class of electronics known as "spin electronics or spintronics," which uses the electron spin rather than its charge to create polarized currents. Spintronics is currently experiencing an extraordinary development with the manufacture of nanoscale devices based on ferromagnetic materials and semiconductors. Their applications are numerous, ranging from recording, electronics, and optoelectronics to quantum information. Spintronics is a new generation of electronics that has brought and continues to bring a lot of progress to information storage;...