| Magnetically Stabilized Luminescent Excitations in Hexagonal Boron Nitride (2001) | |||||||||
Abstract | |||||||||
| Magnetically stabilized luminescence is observed in hexagonal boron nitride. The luminescence is induced by absorption of cold neutrons and is in the visible region. In the absence of a magnetic field, the photon emission level is observed to decay over several hundred seconds. A fraction of this luminescence can be suppressed if the temperature is T ~ 1.0 T. Subsequent to irradiation and suppression, luminescence can be induced by an increase in T or lowering of B. Possible explanations include stabilization of triplet states or the localization and stabilization of excitons.. Comment: 11 pages, 7 figures, to appear in the Journal of Luminescence | |||||||||
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