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Abstract The luminescence properties of CaSO 4 :Pb 2+ (anhydrite), BaSO 4 :Pb 2+ , SrSO 4 :Pb 2+ and PbSO 4 (all barite) are reported. Pb 2+ -doped anhydrite shows Pb 2+ luminescence with a remarkably small Stokes shift to the emission. The barites, however, show emission with a much larger Stokes shift. It is argued that the Pb 2+ luminescence in these compounds is not due to pure s ↔ p transitions on the Pb 2+ ion.
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 55 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |