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The effect of an external magnetic field on the luminescence of gallium phosphide crystals
Volkova L.V.
1, Kalenkov S. G.
1, Skvortsova A. A.
1, Nikolaev V. K.
1, Skvortsov A. A.
1
1Moscow Polytechnic University, Moscow, Russia
Email: volkovalv@inbox.ru, kaser45@gmail.com, skvortsovaanuta@yandex.ru, nvk64@list.ru, skvortsovaa2009@yandex.ru
The effect of a constant magnetic field on photoluminescence spectra in single crystals of gallium phosphide was found in the work. It was found that the preliminary exposure of GaP crystals in a constant magnetic field (B<0.5 T) at room temperature leads to the ignition of a luminescence band with a maximum of λ=565 nm when exposed to a laser crystal with a wavelength of 405 nm and a power of no more than 10 mW. At the same time, the relaxation time of the strip to its initial state did not exceed 3 hours. The authors attribute the observed features to the influence of the magnetic field on both the rate of intercombination conversion (S1-> T1) in GaP crystals and the transition of gallium phosphide complexes with nitrogen to an excited state. Keywords: gallium phosphide, permanent magnetic field, luminescence, relaxation, intercombination conversion.
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