E 43 Electronic structure and x-ray spectra of defective oxides LixCoO2 / V. R. Galakhov [et al.] // Physical Review B. - 2006. - Vol. 74, № 4. - P.045120(1-6) : il. - Bibliogr. : p. 045120(5-6) (26 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СТРУКТУРА ЭЛЕКТРОННАЯ -- СПЕКТРЫ РЕНТГЕНОВСКИЕ -- ОКСИДЫ -- LiCoO2 Аннотация: X-ray absorption, resonant x-ray emission, and x-ray photoelectron spectra of the valence band and core levels have been measured for LixCoO2 (0.6<=x<=1.0,. Resonant O K(alfa) x-ray emission spectra of LiCoO2,,showed localized excitonic states due to a dd transition between unoccupied and occupied Co 3d states. On the basis of measurements of Co 3s x-ray photoelectron and Co 2p and O 1s x-ray absorption spectra it was established that in defective cobaltites the electronic holes are localized mainly in O 2p states. Evidence of phase separation in LixCoO2 has been found Полный текст |