Theoretical Studies of Energy Spectra and g Factors of Cr3+-Doped YAl3(BO3)4 |
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Authors: | ZHANG Ji-Ping CHEN Gang ZHOU Hua-Bin |
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Institution: | College of Physical Science and Technology, Sichuan
University, Chengdu 610065, China |
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Abstract: | With the strong-field scheme and trigonal bases, by diagonalizing the
complete d3 energy matrix in a trigonally distorted cubic-field, the
energy spectra and wavefunctions of YAl3(BO3)4:Cr3+
have been calculated. The rates of change of levels with respect to various
parameters and the contributions to levels from various parameters are
calculated, and the physical origins of various levels or splittings have
been clearly and quantitatively shown. By using the wavefunctions obtained
from diagonalizing the complete energy matrix, the g factors of the ground
state of
YAl3(BO3)4:Cr3+ have been evaluated. The calculated results are in good agreement with the optical-spectral and EPR experimental data. It is demonstrated that the bonding between Cr3+ and ligands
(O2-) is ionic. |
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Keywords: | crystal fields energy spectrum g factor electronic paramagnetic resonance |
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