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- 1. Phys. Rev. B 74, 115118 (2006) , “Optical properties of Cr3+ –doped oxides: Different behavior of two centers in alexandrite”, J. M. García-Lastra, J. A. Aramburu, M. T. Barriuso, and M. MorenoThis work is aimed at explaining the different color exhibited by the two Cr3+ centers in the alexandrite gemstone as well as ruby and emerald. Although the average Cr3+-O2 distance in ruby, emerald, and the Cs center in alexandrite is known... (Read more)
- 2. Thermochim. Acta 29, 247-252 (1979) , “Combined EPR and TG techniques : comparison of the thermal reduction of chromium (VI) ions in some zinc chromates and chromate-oxalate mixtures*1”, Z. Gabelica , E. G. DerouaneR. HubinLower oxydation state chromium species which are successively formed and stabilized upon thermal reduction of chromate (VI) ions, are studied by combined EPR and TG-techniques.The spontaneous oxygen release occuring during the vacuum thermal treatment of some zinc chromates leads to the formation of... (Read more)
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Updated at 2010-07-20 16:50:39
Updated at 2010-07-20 16:50:39
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