ESR in Mn-doped cristobalite AlPO4
- 28 August 1989
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (34) , 5915-5920
- https://doi.org/10.1088/0953-8984/1/34/009
Abstract
ESR spectra are reported for powder samples of Mn-doped cristobalite AlPO4 heat treated in two different atmospheres: argon and air. The spectra are attributed to Mn2+ and Mn4+ ions, respectively. The temperature dependence of the spectrum intensities suggests that the Mn ions undergo a valence change that occurs in the same temperature range as the alpha - beta phase transition.Keywords
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