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Energy Transfer by Ion-Ion Cross-Relaxation in Cs2NaTmCl6

Volume 47, Number 7 (July 1993) Page 1084-1086

Tanner, P.A.; Choi, T.K.; Hoffman, K.


In this study we present experimental results from absorption, excitation, and luminescence spectroscopy which enable us to account for the concentration quenching of near-ultraviolet emission in Cs2NaTmCl6. The thulium ions are situated at sites of octahedral symmetry in this compound, forming a model system for the investigation of energy transfer phenomena.