Abstract
AbstractFirst principle calculation of the electron and positron band structure in the perfect and defected 3C silicon carbide (SiC) is performed within the linear muffin‐tin orbital (LMTO) method in the atomic spheres approximation (ASA). For Si and C vacancy the insulator‐metal transition is observed. Effect of the electron–positron interaction on the resulting positron distribution is studied. Theoretical electron and electron–positron momentum densities for Si and C mono vacancies, obtained within various approximations to the electron–positron correlations, are discussed in comparison with the relevant characteristics in the perfect 3C SiC.
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