Parametrization of the Vibronic Contributions to the b^{0}_{4} Spin-Hamiltonian Parameters for ^{8}S_{7/2} Ground State Ions in Fluoroperovskites

• Authors: T. Rewaj , J. Kuriata , J. Typek , J. Buzare
• Languages of publication: EN

Abstracts

EN

Parametrization of phonon induced contributions to the experimentally determined temperature dependence of the b_{0}^{4} spin-Hamiltonian parameter for Gd_{3+} doped RbCaF_{3}, CsCaF_{3}, RbCdF_{3} and TlCdF_{3} single crystals is discussed. Three physically different parametrization schemes are considered, i.e. that of Einstein, Debye and Huang. It is found that the model of Huang, which predicts that the phonon induced contributions should be proportional to the Debye-Waller factor, describes best the experimental data. The method allowing determination of the Debye temperature from EPR data is also suggested.

Keywords

EN

76.30.Kg

Discipline

• 76.30.Kg: Rare-earth ions and impurities

• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 84
• Issue: 6
• Pages: 1143-1149

Dates

published

1993-12

received

1993-08-24

Contributors

author

T. Rewaj

• Institute of Physics, Technical University of Szczecin, Al. Piastów 17, 70-310 Szczecin, Poland

author

J. Kuriata

• Institute of Physics, Technical University of Szczecin, Al. Piastów 17, 70-310 Szczecin, Poland

author

J. Typek

• Institute of Physics, Technical University of Szczecin, Al. Piastów 17, 70-310 Szczecin, Poland

author

J. Buzare

• Equipe de Physique de l'Etat Condensé, C.N.R.S.-U.R.A. 807, Université du Maine, Av. Olivier Mesiaen, 72-017 Le Mans Cedex, France

Identifiers

DOI

10.12693/APhysPolA.84.1143