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Magnetically Stabilized Luminescent Excitations in Hexagonal Boron Nitride

P. R. Huffman·C. R. Brome·J. S. Butterworth·S. N. Dzhosyuk·R. Golub·S. K. Lamoreaux·C. E. H. Mattoni·D. N. McKinsey·J. M. Doyle
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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 <~ 0.6 K and the magnetic field is B >~ 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.

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P. R. Huffman, C. R. Brome, J. S. Butterworth, S. N. Dzhosyuk, R. Golub, S. K. Lamoreaux, C. E. H. Mattoni, D. N. McKinsey, J. M. Doyle. 2001-03-13. Magnetically Stabilized Luminescent Excitations in Hexagonal Boron Nitride. https://doi.org/10.1016/s0022-2313(01)00166-1

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