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Adsorbed molecular oxygen significantly affects magnetic properties of nanographites. The present work reports on EPR study of multishell nanographite samples obtained from nanodiamonds by prolonged heat treatment. Remarkable differences in EPR spectra and temperature dependences of spectral parameters (integral intensity and linewidths) are observed for both well evacuated/annealed and air saturated...
We prepared oxygen-doped and nitrogen-doped Ge-Sb-Te system thin film by RF magnetron sputtering, and investigated its crystallinity and resistivity with several annealing temperature and oxygen and nitrogen doping content. The test phase change device was fabricated to confirm switching characteristics between crystalline (set) and amorphous (reset) phases. The resistance of nitrogen-doped GST changed...
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