S 46 Semiconductor-metal transition in defect lithium cobaltite [Текст] / D. G. Kellerman, V. R. Galakhov, A. S. Semenova, Ya. N. Blinovskov, O. N. Leonidova // Physics of the Solid State. - 2006. - Vol. 48, № 3. - С. 548-556. - Библиогр. : с. 555 (36 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПЕРЕХОД ПОЛУПРОВОДНИК - МЕТАЛЛ -- КОБАЛЬТИТ ЛИТИЯ Аннотация: The magnetic susceptibility, electrical conductivity, and x-ray photoelectron and x-ray absorption spectra of defect lithium cobaltites of the general formula Li1−xCoO2 are investigated. It is found that, for lithium cobaltites with x> 0.25, the magnetic susceptibility increases abruptly and the conductivity type changes at T~ 150 K. The assumption is made that the semiconductor–metal transition in defect lithium cobaltite is caused by the increase in the diffusion mobility of lithium ions with an increase in the temperature when there is a correlation between spatial distributions of lithium vacancies and “electron” holes Полный текст |