EPR of Dy3+ ions in YAl3(BO3)4 and EuAl3(BO3)4 alumoborates
Creators
- 1. A.A. Galkin Donetsk Institute for Physics and Engineering NASU, 72 R. Luxembourg Str., Donetsk 83114 (Ukraine)
- 2. Institute of Physics, PAS, Al. Lotniko'w 32/46, Warsaw 02-668 (Poland)
Description
The EPR spectra of impurity Dy3+ ions in aluminium borates YAl3(BO3)4 and EuAl3(BO3)4 have been investigated. The signals from the ground and excited doublets were observed and the g-factors and constants of the superfine interaction were determined. From the temperature dependence of signal intensity of the excited doublet the energy distances of (3.26 ± 0.13) cm-1 and (2.54 ± 0.16) cm-1 between the ground and excited doublets were obtained for YAl3(BO3)4 and EuAl3(BO3)4, respectively. The absorption line broadening with increasing temperature is connected with the strong spin-phonon interaction and is described by the Orbach-Aminov process via the excited doublet. It is found that the decrease in g-factor is caused by the spin-phonon interaction
Additional details
Additional titles
- Original title (Russian)
- ЭПР иона Dy³⁺ в алюмоборатах YAl₃(BO₃)₄ и EuAl₃(BO₃)₄
Publishing Information
- Journal Title
- Fizika Nizkikh Temperatur
- Journal Volume
- 40
- Journal Issue
- 8
- Journal Page Range
- p. 939-945
- ISSN
- 0132-6414
INIS
- Country of Publication
- Ukraine
- Country of Input or Organization
- Ukraine
- INIS RN
- 46094654
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM OXIDES; DOPED MATERIALS; DYSPROSIUM IONS; ELECTRON SPIN RESONANCE; EUROPIUM OXIDES; EXCITATION; LINE WIDTHS; SPECTRA; SPIN-LATTICE RELAXATION
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; ENERGY-LEVEL TRANSITIONS; EUROPIUM COMPOUNDS; IONS; MAGNETIC RESONANCE; MATERIALS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; RELAXATION; RESONANCE