Semiconductor Physics, Quantum Electronics & Optoelectronics. 2014. V. 17, N 1. P. 075-079.
https://doi.org/10.15407/spqeo17.01.075

                                                                 

Effect of weak magnetic fields treatment on photoluminescence of III-V single crystals
R.V. Konakova, S.M. Red'ko, V.V. Milenin, R.A. Red'ko

V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, prospect Nauky, 03028 Kyiv, Ukraine
Phone:+38 (044) 525-94-64; fax:+38 (044) 525-61-82, e-mail: redko.rom@gmail.com

Abstract. The long-term transformations of photoluminescence of GaP, GaAs and InP single crystals treated with pulsed weak magnetic fields are obtained. The treatments were performed in two regimes, namely, single-pulse (τ = 30 ms) and multi-pulse (τ = 1.2 ms) ones, at varying magnitudes of magnetic induction. The defect structure transformations were inferred from the radiative recombination spectra in the 0.6-2.5 μm at 77 K. A possible mechanism of observed modifications related to the electron spin transformation is discussed.

Keywords: photoluminescence, weak magnetic field, impurity-defect composition.

Manuscript received 02.12.13; revised version received 29.01.14; accepted for publication 20.03.14; published online 31.03.14.

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