Site symmetry of Mn(II) and Co(II) in zinc phosphate glass

• Published in: The Journal of physics and chemistry of solids Vol. 64; no. 12; pp. 2433 - 2436
• Main Authors: Ravikumar, R.V.S.S.N., Ikeda, K., Chandrasekhar, A.V., Reddy, Y.P., Rao, P.S., Yamauchi, Jun
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-12-2003; Elsevier
• Subjects: A. Glasses; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Crystal and ligand fields; D. Crystal fields; D. Electron paramagnetic resonance (EPR); Electron paramagnetic resonance and relaxation; Electron states; Exact sciences and technology; Iron group (3d) ions and impurities (ti-cu); Level splitting and interactions; Magnetic resonances and relaxations in condensed matter, mössbauer effect; Physics; D. Electron paramagnetic resonance (EPR); A. Glasses; D. Crystal fields; Zinc additions; ESR; Zinc phosphates; Ternary compounds; Transition element compounds; Doping; Crystal field; Phosphate glass; Experimental study; g-factor; Cobalt additions; Absorption spectra; Site symmetry
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/S0022-3697(03)00286-5

Optical absorption and EPR spectra of Mn(II) and Co(II) doped zinc phosphate glasses have been investigated. Crystal filed parameters and
g values are determined. For Mn(II) doped glass the values are Dq=850,
B=850,
C=2975
cm
−1
and
g values are around 2 at room temperature (RT). For Co(II) doped glass, Dq=890,
B=700,
C=4100
cm
−1
and
g=4.45 and 2.06 at liquid nitrogen temperature. The optical and EPR data has been correlated.