ChemInform Abstract: SYNTH. UND EIGENSCHAFTEN ZUSAMMENGESETZTER SELTENERDMETALL‐ZIRKONIUM‐OXIDE

Abstract

Durch Erhitzen von Gemischen aus Seltenerdmetall‐ und Zr‐nitrat wurden die Oxide (I) erhalten, die Fluoritstruktur besitzen.

First Observed Metal-like to Insulator Transition in the Vacant 3d Orbital Quantum-Spin Liquid Tb2Ti2O7

“…where ρ is the density of the compound (g/cm 3 ), ∑A is the product of the number of atoms in the unit cell and the atomic weight of the compound, N A is Avogadro's number, and V is the volume of the unit cell (1045 Å 3 calculated from XRD). By substituting the value, the density is found to be 6.6 g/cm 3 , 47,48 which is in agreement with the values reported.…”

“…The compound adopts a cubic structure with the space group Fd 3̅ m , and the unit cell parameters and reliability factors obtained from the fit are tabulated in Table . The refined unit cell parameters are a = b = c = 10.1504(2) Å with the cell volume of 1045 Å 3 , in agreement with the reported values. ,,,, The density of the prepared sample is calculated using lattice parameters from the XRD data using the relation where ρ is the density of the compound (g/cm 3 ), ∑ A is the product of the number of atoms in the unit cell and the atomic weight of the compound, N A is Avogadro’s number, and V is the volume of the unit cell (1045 Å 3 calculated from XRD). By substituting the value, the density is found to be 6.6 g/cm 3 , , which is in agreement with the values reported.…”

“…The refined unit cell parameters are a = b = c = 10.1504(2) Å with the cell volume of 1045 Å 3 , in agreement with the reported values. 7,35,40,47,48 The density of the prepared sample is calculated using lattice parameters from the XRD data using the relation…”

Peculiarities of the Synthesis of Lithium Ion Conducting Lanthanum Tantalate by Solid‐State Reaction and Precipitation from Solutions

“…[12] Lanthanum metatantalate as the main phase was found in the samples calcined at 1570 K. At 1770 K, the yield of the phase with the perovskite structure is 95 % ( SSR method. According to Portnoi et al this temperature is 1870 K. [13] On the basis of the analysis of the phase composition and phase ratio as a function of firing temperature (Table 1) and taking into account the literature data, [14,15] the process of formation of lanthanum metatantalate, La 2/3 -Ta 2 O 6 (LaTa 3 O 9 ), with a defect perovskite structure of the tetragonal system, may be represented by Equations (1), (2), (3), (4) and (5).…”