Absorption spectrum of Co2+ ions doped in zinc thallium sulphate hexahydrate

✍ Scribed by J. Lakshmana Rao; M. Ramachandra Reddy; S.V.J. Lakshman

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 250 KB
• Volume: 153
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(88)90045-2

✦ Synopsis

The optical absorption spectrum of Co 2+ ions doped in zinc thallium sulphate hexahydrate has been studied at room and liquid nitrogen temperatures. The crystal shows characteristic absorption of Co ~-~ ion in the visible and near infrared regions. The observed bands are assigned as transitions from the ground state 4TIg(F ) to various excited quartet and doublet levels of the Co 2~ ion in octahedral symmetry. The splitting in one of the bands at liquid nitrogen temperature has been explained to be due to spin-orbit splitting. All the observed band positions have been fitted with the parameters B, C, Dq and ~=.