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The anomalous optical absorption spectrum of low zircon

Published online by Cambridge University Press:  05 July 2018

E. R. Vance
E. R. Vance*
Affiliation:
Department of Solid State Physics, Research School of Physical Sciences, Australian National University, Canberra, A.C.T. 26o0, Australia
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Summary

Further lines of the anomalous optical absorption spectrum in low metamict zircon have been observed in the infra-red. Low-temperature polarization studies have enabled a clear distinction to be made between lines due to the anomalous spectrum and those due to the normal spectrum of U4+ in zircon. Magnetic circular dichroism measurements showed, for the anomalous spectrum, only contributions due to the mixing of the energy levels by the magnetic field; thus the A spectrum results from singlet → singlet transitions. The anomalous spectrum appears to derive from U4+ incorporated in polycrystalline zirconia.

Type
Research Article
Information
Mineralogical Magazine , Volume 39 , Issue 306 , June 1974 , pp. 709 - 714
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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