International Journal of Education & Applied Sciences Research

International Journal of Education & Applied Sciences Research

Print ISSN : 2349 –4808

Online ISSN : 2349 –2899

Frequency : Continuous

Current Issue : Volume 11 , Issue 1
2024

Modeling of Cr3+ in Li+-Ion-Doped K2ZnF4 Crystals

Maroj Bharati, Vikram Singh, Ram Kripal

1 Designation & Department: Mrs., Department of Physics Institution with full address (City, State, Country, Postal code): Nehru Gram Bharti (DU), Jamunipur, Prayagraj, 221505, Uttar Pradesh, India ORCID: 0009-0007-8219-0993

2 Designation & Department: Dr., Department of Physics Institution with full address (City, State, Country, Postal code): Nehru Gram Bharti (DU), Jamunipur, Prayagraj, 221505 Uttar Pradesh, India ORCID: 0000-0003-3813-586X

3 Designation & Department: Prof., Department of Physics Institution with full address (City, State, Country, Postal code): University of Allahabad, Prayagraj-211002, Uttar Pradesh, India ORCID: 0000-0002-3483-8704

Published Online : 2024-06-30

Download Full Article : PDF Check for Updates


Aim of the study: The study is carried out to determine the Cr3+ crystal field and zero field splitting parameters in K2ZnF4 crystals infused with Li+ ions to locate the Cr3+ ion and the K2ZnF4 crystal's distortion.   Design/Methodology: By using superposition model and suitable Cr3+ ion sites in K2ZnF4 with distortion the splitting parameters of the zero field and the crystal field are found. The crystal field energy bands for Cr3+ in K2ZnF4 are calculated using the Crystal Field Analysis Program and crystal field parameters. By diagonalizing the entire Hamiltonian in intermediate crystal field, the locations of the energy bands of the Cr3+ ion are established. The Hamiltonian is made up of the Coulomb interaction, the crystal field Hamiltonian, the Trees correction, the spin-orbit interaction, the spin-spin interaction, and the spin-other-orbit interaction. Findings: The splitting parameters for the zero field in theory and experiment agree well when taking into account local distortion in the calculation. A fair degree of agreement is found between the band positions found in the experiment and those calculated. The findings suggest that in K2ZnF4 single crystals, Cr3+ ions replace Zn2+ at octahedral sites. Practical Implications: The study intimates that the methodology may be applied to a number of different ion-host systems to investigate crystals with commercial and scientific uses. Originality value: The study gives a stout contribution to the literature on zero field and crystal field splitting parameters of intoxicated crystals.

Keywords: Crystal field; Cr3+ ions in K2ZnF4; Optical spectroscopy; Superposition model; Zero-field splitting.

Paper type: Research paper