S 98 Synthesis and structure of Sr1-xLixCuO2 (0 x 0.15) phases produced at high temperatures and pressures [Electronic resource] / M. A. Sannikova, T. V. D'yachkova, A. P. Tyutyunnik, V. G. Zubkov, N. I. Kadyrova, Yu. G. Zainulin // Journal of Structural Chemistry. - 2003. - Vol. 44, № 2. - P231-234 : il. - Bibliogr. : p. 234 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СВЕРХПРОВОДНИКИ МЕДЬ-ОКСИДНЫЕ -- ТВЕРДЫЕ РАСТВОРЫ -- КУПРАТЫ Аннотация: We studied the possibility of synthesizing in nite-layer (IL) phases of Sr1-xLixCuO2 (0 < x < 1) composition from both orthorhombic Sr1-xLixCuO2 (0 < x < 1) solid solutions and from the corresponding cuprates, SrCuO2 and Li2CuO2, at high pressures (P = 4{8 GPa) and high temperatures (T = 600{1000 C). The optimal conditions for synthesis of the IL phases are P = 4 GPa, T = 800 C, and = 2 min. At high pressures and temperatures, the components of the SrCuO2{ LiCuO2 system show limited mutual solubility. Sr1-xLixCuO2 solid solutions exist at 0 < x < 0:15. The relationship between the unit cell parameters and Li content of high-pressure Sr1-xLixCuO2 phases has been established Полный текст |