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1991 | 79 | 4 | 531-541
Article title

Dynamic Orbit-Lattice Interactions for PbF_{2}:Gd^{3+} Single Crystals

Content
Title variants
Languages of publication
EN
Abstracts
EN
Temperature dependence of the second-order spin-lattice coefficients for PbF_{2}:Gd^{3+} is reported. It is shown that the thermal expansion of the crystal lattice contributes only in about 14 % to the observed dependence and the rest should be ascribed to a dynamic coupling between the 4f^{7} electrons and lattice vibrations. The results are parametrized in both the Einstein and the Debye models and it is shown that the phenomenological parameters obtained from such parametrization can be made to coincide in both models if a specific value of the Einstein frequency ω_{E} is properly chosen. Both models of parametrization show that the Γ_{3}_{g} vibrating mode couples to the 4f^{7} electrons much weaker than the Γ_{5}_{g} one.
Keywords
EN
Publisher

Year
Volume
79
Issue
4
Pages
531-541
Physical description
Dates
published
1991-04
received
1990-05-04
(unknown)
1990-11-05
Contributors
author
  • Institute of Physics, Technical University of Szczecin, Al. Piastów 17, 70-310 Szczecin, Poland
author
  • Institute of Physics, Technical University of Szczecin, Al. Piastów 17, 70-310 Szczecin, Poland
author
  • Department of Physics, University of Athens, Solonos Str. 104, 10677 Athens, Greece
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv79z413kz
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