EPR and optical absorption by Cu{sup 2+} ions in ZnO−Li{sub 2}O−Na{sub 2}O−K{sub 2}O−B{sub 2}O{sub 3} glasses

Journal Article · Thu Apr 24 04:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4872775· OSTI ID:22271041

Hameed, Abdul; Shareefuddin, Md.; Chary, M. Narasimha ^[1]; Ramadevudu, G. ^[2]

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1. Department of Physics, Osmania University, Hyderabad-500007 (India)
2. Department of Physics, Vasavi college of Engineering, Hyderabad-500031 (India)

Electron Paramagnetic Resonance (EPR) studies at room temperature in the x-band frequencies on xZnO−10Li{sub 2}O−10Na{sub 2}O−10K{sub 2}O−(69−x)B{sub 2}O{sub 3}−1CuO (x=0,2,4,6 and 8 mole%) glass systems were reported. The non-linear variation of spin-Hamiltonian parameters with ZnO content indicated the change in the ligand field strength around Cu{sup 2+} ions in the host glass. The ground state of Cu{sup 2+} ions in the glass is designated as d{sub x{sup 2}−y{sup 2}} orbital ({sup 2}B{sub 1g}) while the observed symmetry around it is tetragonally distorted octahedral. The molecular orbital coefficients α{sup 2}, β{sup 2} and β{sub 1}{sup 2} are evaluated for Cu{sup 2+} doped samples. The non-linear variation in the values of parameters indicated mixed alkali effect in the glasses.

• OSTI ID: 22271041
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1591; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORON OXIDES
CONCENTRATION RATIO
COPPER IONS
DOPED MATERIALS
ELECTRON SPIN RESONANCE
GLASS
GROUND STATES
HAMILTONIANS
LIGANDS
LITHIUM OXIDES
MOLECULAR ORBITAL METHOD
NONLINEAR PROBLEMS
POTASSIUM OXIDES
SODIUM OXIDES
SPIN
TEMPERATURE RANGE 0273-0400 K
ZINC OXIDES