Flux growth of perovskite-type La2/3TiO3-x crystals

A-site deficient perovskite-type compounds in the ternary CaTiO3-LaCrO3-La2/3TiO3 system

“…Some of the compositions of the La 1−x TiO 3 solid solutions were obtained and investigated by Leonov et al [27,28] and Basuev et al [29]. According to literature data, the structure of La 2/3 TiO 3 is orhtorhombic [30,31], tetragonal or cubic [32]. MacEachern et al [33] studied the La 1−x TiO 3 system at 0.0 ≤ x ≤ 0.33 and showed that three different orhtorhobmic structures are formed in this concentration range: Pban at 0.25 ≤ x ≤ 0.33, Ibmm at 0.20 ≤ x ≤ 0.25 and Pbnm at 0.0 ≤ x ≤ 0.20.…”

Sol-gel synthesis, structure, and dielectric properties of La0.67LixTi1-xAlxO3 solid solutions

“…3 shows the calculated unit cell volumes. The volume value for the single-phase material La 0.67 TiO 3 was taken from the literature [ 14 , 15 ]. The dependence of the unit cell volume in the concentration region 0.05 ≤ x ≤ 0.3 is linear and obeys Wegard's law indicating the formation of a continuous series of solid solutions.…”

“…Yokoyama et al [ 15 ] showed that there is an ordered distribution of lanthanum ions and vacancies in the sublattice A of perovskite-type ABO 3 ( Fig. 4 a) in the tetragonal (P4/mmm) lanthanum titanate La 0.67 TiO 3 .…”

Phase relations and electrical properties in the pseudo-ternary La2O3–TiO2–Mn2O3 system in air

“…[1][2][3][4] Their properties can be improved even further by the addition of small amounts of some oxides (or compounds) that promote the formation of a perovskite-like R 2/3 TiO 3 compound in these systems. [5][6][7] It is known that the R 2/3 TiO 3 compound is not stable in its pure form due to the large number of vacant A sites in the crystal structure; 9 however, as little as 4 mol% of LaAlO 3 can fully stabilize the La 2/3 TiO 3 compound.…”