Published November 2010
| Version v1
Journal article
Comparison of the Spectral Characteristics of Chromium-Containing Crystals of the Calcium Gallogermanate Type with Their Structural Features
Creators
- 1. Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
Description
The molecular refractions and characteristics of the circular dichroism spectra of unactivated and chromiumactivated La3Ga5.5Ta0.5O14, La3Ga5.5Nb0.5O14, La3Ga5GeO14, La3Ga5SiO14, Sr3Ga2Ge4O14, and Ca3Ga2Ge4O14crystals are compared with their structural parameters. Correlations between the molecular refractions and the structural distortions responsible for the optical activity of crystals and correlations between the characteristics of circular dichroism bands of defects and chromium ions and the interatomic distances in polyhedra and their distortions are found. The calcium gallogermanate structures exhibit a unique correspondence between the electronic configuration of host ions and the local symmetry.
Additional details
Identifiers
Publishing Information
- Journal Title
- Crystallography Reports
- Journal Volume
- 55
- Journal Issue
- 6
- Journal Page Range
- p. 976-982
- ISSN
- 1063-7745
- CODEN
- CYSTE3
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44014038
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CALCIUM COMPOUNDS; CHROMIUM; CHROMIUM IONS; CRYSTALS; DICHROISM; ELECTRONIC STRUCTURE; GALLIUM COMPOUNDS; GERMANATES; INTERATOMIC DISTANCES; OPTICAL ACTIVITY; REFRACTION; SPECTRA; SYMMETRY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; DISTANCE; ELEMENTS; GERMANIUM COMPOUNDS; IONS; METALS; OPTICAL PROPERTIES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2010 Pleiades Publishing, Ltd.