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The neutron powder diffraction measurement of LiCo1/3Ni1/3Mn1/3O2 was carried out and the crystal structure and scattering density distribution were analyzed by Rietveld refinement and the maximum entropy method (MEM) to estimate the Li diffusing pathway. Rietveld refinement showed that the structure was basically the same as LiCoO2: a R-3 m space group, with Li and O mainly occupying the 3 a and 6 c sites, and Co, Ni, and Mn randomly occupying the 3 b site. Approximately 4% of the Li and Ni atoms exchanged their original sites (3 a and 3 b) to occupy 3 b and 3 a, respectively. Based on MEM analyses, we surmise that Li atoms moved on the (001), (003), and (00-3) planes and diffused through the 3 a–9 e–3 a sites on these planes. [ABSTRACT FROM AUTHOR]

The intrinsic dielectric properties of LaAlO3 were investigated to understand the microwave properties of several materials containing LaAlO3. In this study, LaAlO3 single crystals were prepared by the Czochralski method. The temperature dependence of the dielectric properties and neutron inelastic scattering of the single crystals were measured. From these data, the intrinsic dielectric properties were evaluated and it was found that the dielectric loss of the LaAlO3 includes two types of dielectric loss. One is a phonon absorption-related loss and the other is a component of the loss arising from Debye- type orientation polarization. The latter affects the room temperature dielectric loss in materials containing LaAlO3. The present study suggests that avoiding this polarization loss is an important goal in decreasing the total dielectric loss. [ABSTRACT FROM PUBLISHER]