Gyromagnetic factors and spin-orbit coupling in ligand field theory
It has been customary to compute the effect of spin-orbit coupling on the magnetic properties of transition metal ions in crystals with the expression taken over from atomic spectroscopy, although this expression is valid only in a spherically symmetric field. In the present work, we show how the us...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00219606_v41_n8_p2524_Misetich |
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todo:paper_00219606_v41_n8_p2524_Misetich2023-10-03T14:24:43Z Gyromagnetic factors and spin-orbit coupling in ligand field theory Misetich, A.A. Buch, T. It has been customary to compute the effect of spin-orbit coupling on the magnetic properties of transition metal ions in crystals with the expression taken over from atomic spectroscopy, although this expression is valid only in a spherically symmetric field. In the present work, we show how the use of a spin-orbit interaction Hamiltonian derived from the Bethe-Salpeter approximation to the relativistic Breit equation for a partly covalent complex leads to a dependence of the gyromagnetic factor on the spin-orbit coupling parameter of the ligand atoms. We develop an expression of g for a d8-ion in a cubic field and apply it to the case of KNiF3. The calculated g values agree very well with experimental results. Other differences between our expression and those found by other authors are discussed. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219606_v41_n8_p2524_Misetich |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
It has been customary to compute the effect of spin-orbit coupling on the magnetic properties of transition metal ions in crystals with the expression taken over from atomic spectroscopy, although this expression is valid only in a spherically symmetric field. In the present work, we show how the use of a spin-orbit interaction Hamiltonian derived from the Bethe-Salpeter approximation to the relativistic Breit equation for a partly covalent complex leads to a dependence of the gyromagnetic factor on the spin-orbit coupling parameter of the ligand atoms. We develop an expression of g for a d8-ion in a cubic field and apply it to the case of KNiF3. The calculated g values agree very well with experimental results. Other differences between our expression and those found by other authors are discussed. |
| format |
JOUR |
| author |
Misetich, A.A. Buch, T. |
| spellingShingle |
Misetich, A.A. Buch, T. Gyromagnetic factors and spin-orbit coupling in ligand field theory |
| author_facet |
Misetich, A.A. Buch, T. |
| author_sort |
Misetich, A.A. |
| title |
Gyromagnetic factors and spin-orbit coupling in ligand field theory |
| title_short |
Gyromagnetic factors and spin-orbit coupling in ligand field theory |
| title_full |
Gyromagnetic factors and spin-orbit coupling in ligand field theory |
| title_fullStr |
Gyromagnetic factors and spin-orbit coupling in ligand field theory |
| title_full_unstemmed |
Gyromagnetic factors and spin-orbit coupling in ligand field theory |
| title_sort |
gyromagnetic factors and spin-orbit coupling in ligand field theory |
| url |
http://hdl.handle.net/20.500.12110/paper_00219606_v41_n8_p2524_Misetich |
| work_keys_str_mv |
AT misetichaa gyromagneticfactorsandspinorbitcouplinginligandfieldtheory AT bucht gyromagneticfactorsandspinorbitcouplinginligandfieldtheory |
| _version_ |
1807315510452289536 |