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Abstract For the first time the 6 I emission of Eu 2+ is reported. 6 I emission of Eu 2+ in KMgF 3 can be observed because the energetically lowest 4f 6 5d state is situated above the 6 I 7/2 state of Eu 2+ . This high energetic position of the lowest 4f 6 5d state of Eu 2+ in KMgF 3 is explained by the small crystal-field splitting and the high position of the centre of gravity of the 4f 6 5d states. The decay time of the 6 I emission at 4.2 K is 96 μs. Above 25 K the 6 I emission is completely quenched via the lowest 4f 6 5d state, which is at some 50 cm -1 above the 6 I 7/2 levels.
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). | 8 | |
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. | Average | |
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 |