Author/Authors :
P.R. Huffman، نويسنده , , C.R. Brome، نويسنده , , J.S. Butterworth، نويسنده , , S.N. Dzhosyuk، نويسنده , , R. Golub، نويسنده , , S.K. Lamoreaux، نويسنده , , C.E.H. Mattoni، نويسنده , , D.N. McKinsey، نويسنده , , J.M. Doyle، نويسنده ,
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.
