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A study of the spin-Hamiltonian parameters for the trigonal Sm3+ center in La2Mg3(NO3)(12)·24H2O crystal
- Source :
- Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 78(1)
- Publication Year :
- 2010
-
Abstract
- This paper reports a theoretical calculation of spin-Hamiltonian parameters ( g factors g // , g ⊥ and hyperfine structure constants 147 A // , 147 A ⊥ , 149 A // , 149 A ⊥ ) for 147 Sm 3+ and 149 Sm 3+ isotopes in the trigonal La 3+ site of La 2 Mg 3 (NO 3 ) 12 ·24H 2 O crystal from a diagonalization (of energy matrix) method. In the method, the Hamiltonian concerning the energy matrix includes the Zeeman and hyperfine interaction terms and so there is no perturbation calculation in it. The crystal-field parameters in the energy matrix are calculated using the superposition model, in which the structural data of 12-fold coordinated site rather than those of the incorrect 6-fold coordinated site given in the previous paper are applied. The calculated results are in reasonable agreement with the experimental results. The results are discussed.
- Subjects :
- Samarium
Zeeman effect
Condensed matter physics
Chemistry
Spin hamiltonian
Magnesium Compounds
Trigonal crystal system
Atomic and Molecular Physics, and Optics
Analytical Chemistry
symbols.namesake
Superposition principle
X-Ray Diffraction
Lanthanum
symbols
Thermodynamics
Magnesium
Spin Labels
Atomic physics
Hamiltonian (quantum mechanics)
Crystallization
Instrumentation
Hyperfine structure
Spectroscopy
Energy matrix
Subjects
Details
- ISSN :
- 18733557
- Volume :
- 78
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
- Accession number :
- edsair.doi.dedup.....4033682e88946ec05c69ee419072c137