Crystal structure of a lithium ion-conducting perovskite La2/3-xLi3xTiO3 (x=0.05)

被引：122

作者：

Inaguma, Y

Katsumata, T

Itoh, M

Morii, Y

机构：

[1] Gakushuin Univ, Fac Sci, Dept Chem, Toshima Ku, Tokyo 1718588, Japan

[2] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[3] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2002年 / 166卷 / 01期

关键词：

D O I：

10.1006/jssc.2002.9560

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal structure of a lithium ion-conducting perovskite La0.62(2)Li0.16(1)TiO3.01(3) obtained by furnace-cooling was refined by the Rietveld method using neutron-diffraction data at room temperature and 77 K. The adopted space group was Cmmm (No. 65). The anti-phased tilts of TiO6 octahedra along the b-axis in addition to alternative arrangement of La ions along the c-axis was confirmed. The position of Li was refined to be off-centered and in two equivalent positions in an A-site. The obtained structural information implies that the lithium ion conduction among A-sites occurs in the vicinity of La-poor layers two-dimensionally rather than three-dimensionally in this compound. (C) 2002 Elsevier Science (USA).

引用

页码：67 / 72

页数：6

共 24 条

[1] X-RAY STUDY OF DEFICIENT PEROVSKITE LA2-3TIO3 [J].