Structure and the electronic and magnetic properties of LaTiO3

Enhanced Fenton degradation of Rhodamine B over nanoscaled Cu-doped LaTiO3 perovskite

“…It can be seen that a phase transition process occurred with an increase of Cu content. According to the XRD results, the introduction of Cu induced the formation of the crystalline phase LaTiO 3 in which titanium existed as Ti 3+ [21]. The average size of LaTi 0.4 Cu 0.6 O 3 crystallite was 38.2 nm based on the calculation with Scherer equation.…”

Theory of magnetic resonance as an orbital state probe

“…12,13 Actually, different pieces of the above results were obtained earlier by several authors. 5,6,[18][19][20][21][22]24,25,33,36 Orbital structure, superexchange interactions, and magnetic ground state are reproduced here to illustrate the realistic model with reasonable parameters, and, what is more important, to uncover particular mechanisms of titanates orbital and magnetic ground states formation that has not been done before.…”

“…This admixture is not very big in real compounds because of large crystal-field splitting of the Ti 3+ 3d-t 2g levels in both of them. The central point of the discussion of titanates [2][3][4][5][6][7][8]12,13,[15][16][17][18][19][20][21][22][23][24][25]33,36,[42][43][44] is the question of what approach is more relevant as a starting point for these compounds description: "crystal-field" approach, when it is assumed that the crystal field is much stronger than superexchange interaction, H cf ӷ H ex ; or the "orbital fluctuations" approach, when the opposite relation ͑H cf Ӷ H ex ͒ is considered. From this point of view the present work is an investigation and a comparison of two models on the example of titanates rather than a study of some real compound properties.…”

Specific features of magnetic structure formation in orbitally degenerate BiMnO3 manganite

“…The strong influence on mixing angle Φ n of the wavefunctions can be produced by interactions of some other types. According to [12,13,15], these are (i) interaction with nearest neighbors in the octahedral environment of higher orders: (4) where Q θn , Q εn are the symmetrized coordinates of e g type distortions of the nearest neighbor oxygen envi ronment of the nth Mn 3+ ion and Q xn , Q yn , Q zn are the symmetrized coordinates of t 1g type distortions of the ) have not been estimated, but their possible influence on the orbital and magnetic states of the crystal can be considered. Table 3 presents data for the symmetrized distortions of the environment of man ganese ions as calculated from experimental data [8].…”