E 58 Enyashin, A. N. Structural, electronic, cohesive, and elastic properties of diamondlike allotropes of crystalline C40 [Текст] / A. N. Enyashin, A. L. Ivanovskii // Physical Review B: Condensed Matter and Materials Physics. - 2008. - Vol. 77, № 11. - С. 113402/1-113402/4. - Библиогр. : с. 113402/4 (21 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): АЛЛОТРОПИЯ -- АЛМАЗОПОДОБНЫЕ КРИСТАЛЛЫ -- ФУЛЛЕРЕНЫ Аннотация: The atomic models of diamondlike allotropes of crystalline C40 hyperdiamond, hyperlonsdaleite and socalled autointercalated hyperdiamond are offered and using the density-functional based tight-binding method their structural, cohesive, elastic, and electronic properties are predicted as well as their theoretical x-ray diffraction spectra are derived. Among these allotropes the autointercalated hyperdiamond C40 has a unique combined type of both covalent and van der Waals bonding and shows the highest density and hardness Полный текст |