Abstract
Samples of composition Ba1-xCexMgF4+x were prepared by heating in dry nitrogen. At Ce concentrations below 10 mole %, X-rays showed the BaMgF4 structure1. Above that composition a new structure appears. Excitation spectra of samples containing 0.3, 3 and 10 mole % Ce are shown in Figure 1. The excitation peaks shift to longer wavelength as the Ce concentration increases.
© 1984 Optical Society of America
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