Optical absorption and EPR studies on enargite
Frost, Ray L., Reddy, S. Lakshmi, Reddy, N.C. Gangi, Reddy, B. Jagannadha, & Reddy, G. Siva (2006) Optical absorption and EPR studies on enargite. Radiation Effects and Defects in Solids, 161(11), pp. 645-651.
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Abstract
The behaviour of transition metal ions in enargite has been studied by electron paramagnetic resonance and absorption spectroscopy in the UV–VIS and near-IR regions. The ground state of Cu(II) ions in enargite is confirmed as 2B1g since g11>g⊥ (2.54>2.11). Three characteristic bands observed in the optical absorption spectra at 8275, 13105 and 18420 cm−1 are assigned to the transitions, 2B1g→2A1g, 2B1g→2B2 and 2B1g→2Eg, respectively, of Cu(II) ion in the tetragonal field. The presence of Fe(II) bands is an evidence for iron impurities in the mineral.
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| ID Code: | 5961 |
|---|---|
| Item Type: | Journal Article |
| Keywords: | Enargite, Electron paramagnetic resonance, Near, infrared spectroscopy, Optical absorption |
| DOI: | doi:10.1080/10420150600903342 |
| ISSN: | 1029-4953 |
| Divisions: | Past > QUT Faculties & Divisions > Faculty of Science and Technology |
| Copyright Owner: | Copyright 2006 Taylor & Francis |
| Copyright Statement: | First published in Radiation Effects and Defects in Solids 161(11):pp. 645-651. |
| Deposited On: | 14 Feb 2007 |
| Last Modified: | 29 Feb 2012 23:23 |
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