Superposition model analysis for Cr3+ ions at orthorhombic sites in Sr3Ga2Ge4O14

R. Kripal¹ , L. C. Shukla²

Section:Research Paper, Product Type: Journal-Paper
Vol.9 , Issue.6 , pp.44-48, Dec-2021

Online published on Dec 31, 2021

Copyright © R. Kripal, L. C. Shukla . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Using superposition model (SPM) the zero field splitting (ZFS) parameters (ZFSPs) and crystal field parameters (CFPs) are found. Two substitutional sites at Ga3+ and one structural vacancy site, for Cr3+ ion in Sr3Ga2Ge4O14 (SGG) crystal together with distortion model are employed. The calculated ZFSPs agree well with the experimental values. The optical energy bands for Cr3+ in SGG are obtained using CFPs determined from SPM. The results show that Cr3+ ions introduce SGG lattice at Ga3+ sites.

Key-Words / Index Term :
Superposition model; Crystal field and zero-field splitting Hamiltonians; Optical spectroscopy; Cr3+ ions in Sr3Ga2Ge4O14 (SGG).

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