Structure and properties of Ba6 − xLnxNb10O30, Ln = La, Ce and Nd compounds
References (27)
- et al.
Solid State Commun.
(1975) - et al.
Phys. Lett.
(1967) - et al.
Phys. Lett.
(1965) - et al.
J. Solid State Chem.
(1995) - et al.
Mater. Res. Bull.
(1995) - et al.
Mater. Res. Bull.
(1994) - et al.
Mater. Res. Bull.
(1995) - et al.
Phys. Rev. B
(1979) - et al.
Nature
(1990) - et al.
Supercond: Phys., Chem., Tech. (KIAE, Russia)
(1992)
Eur. J. Solid State Chem.
J. Appl. Phys. Part 1
Jpn. J. Appl. Phys. Pt. 2
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Spontaneous Non-stoichiometry and Ordering in Degenerate but Gapped Transparent Conductors
2019, MatterCitation Excerpt :We also include experimentally known reconstructed OVCs, the compounds that satisfy the OVC expression but do not have clearly defined vacancy sites (e.g., Ba3Nb5O15, BaNb2O6, and Ba5Nb4O6). Available information on the experimental literature15–30 is provided in Figure 4, and the theoretical results of this work are summarized in Figure 5. The key point to notice is that there is a sequence of stable OVC phases, each having a specific concentration of electrons per formula unit (e/f.u.) in the CB (including possibly zero).
Crystal growth and characterization of tetragonal tungsten bronze FerroNiobates Ba <inf>2</inf>LnFeNb <inf>4</inf>O <inf>15</inf>
2012, Journal of Crystal GrowthCitation Excerpt :Chemical analysis (Table 2) revealed deficiencies in rare earth and iron for LnFNO samples that increase as the ionic radius of the rare earth cations decreases. These substantial substoichiometries in Ln3+ and Fe3+ cations are consistent with the deviations observed in the corresponding ceramics [16,17] or in other TTB systems such as Ba6−xLnxNb10O30 (Ln=La, Ce and Nd) solid solutions [21] or Ba2AgNb5O15 [22], suggesting that in our growth process, the segregation observed is dominated by the solid state solubility limits. As a first approximation in explaining the phase contents in LnFNO ceramics, a chemical equilibrium based on the rare earth and iron deficiencies, x and y were suggested, respectively [10] to follow the evolution of the LnFNO TTB compositions and the occurrence of secondary phases: Ba2LnFeNb4O15→Ba2−yLn1−xFe1−12yNb4−xO15−4x−19y+x LnNbO4+y BaFe12O19.
Crystallization and second harmonic generation in thermally poled niobium borophosphate glasses
2005, Journal of Solid State ChemistryCrystal structure of the Ba<inf>4</inf>CeNb<inf>10</inf>O<inf>30</inf> reduced niobate with a TTB-type structure
2001, Journal of Solid State Chemistry