
The compound EuAl3B4O12 shows thermally activated energy migration among the 5D0 excited level. In NaEuTiO4 this migration reduces to two-dimensional, down to the lowest temperatures, whereas in EuMgB5O10 one-dimensional migration is observed. For short distances and low temperatures the Eu3+-Eu3+ transfer occurs by exchange.
[PHYS.HIST] Physics [physics]/Physics archives
[PHYS.HIST] Physics [physics]/Physics archives
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