Spectrum and Structure of Trivalent Europium in Europium Bromate

Journal Article · Wed Apr 01 04:00:00 EST 1959 · European Physical Journal. A

DOI:https://doi.org/10.1007/BF01337931· OSTI ID:4250341

Kahle, H. G.

The absorption spectrum of a single sector of the pseudohexagonal crystal was measured in the temperature range from 68 to 290 deg K. The theoretical analysis proved earlier was improved and completed. The essential points are that the point symmetry of the Eu³⁺ ion in the lattice, in the temperature range studied, is C_S, in very good approximation, with the monoclinic axis perpendicular to the pseudohexagonal crystal axis and parallel to the other prism surface. The deviations from the hexagonal symmetry were larger with decreasing temperature. The single sectors are not formed homogeneously but possess a mosaic structure for which a model is given. From the term splitting the real matrix elements of the crystal field energy were determined. The phase of a complex matrix element was established from the intensity of the magnetic dipole moment. Tho intensity of the electric dipole radiation increases with decreasing temperature.

• Research Organization: Technische Hochschule, Darmstadt, Ger.
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-015536
• OSTI ID: 4250341
• Journal Information: European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 2 Vol. 155; ISSN 1434-6001
• Publisher: Springer
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ABSORPTION
BROMATES
BROMIC ACID
CRYSTALS
DIPOLES
ENERGY
EUROPIUM
HOMOGENEOUS REACTORS
IONS
LATTICES
MAGNETIC MOMENTS
MATRICES
MEASURED VALUES
PHYSICS AND MATHEMATICS
QUANTITATIVE ANALYSIS
RADIATIONS
SPECTRA
SURFACES
TEMPERATURE
ZONES