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Influence of weak magnetic fields treatment on photoluminescence of GaAs

Long-term transformations in photoluminescence of GaAs single crystals treated with pulsed weak magnetic fields have been obtained. Treatments were performed in the multi-pulse (B = 60 mT, f = 10 Hz, τ = 1.2 ms, t = 5 min) regime. The defect structure transformations were inferred from the radiat...

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Bibliographic Details
Main Author: Red'ko, S.M.
Format: Article
Language:English
Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2014
Series:Semiconductor Physics Quantum Electronics & Optoelectronics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/118498
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Summary:Long-term transformations in photoluminescence of GaAs single crystals treated with pulsed weak magnetic fields have been obtained. Treatments were performed in the multi-pulse (B = 60 mT, f = 10 Hz, τ = 1.2 ms, t = 5 min) regime. The defect structure transformations were inferred from the radiative recombination spectra within the range 0.6 to 2.5 μm at 300 and 77 K. A possible mechanism of the observed modifications related with electron-spin transformation is discussed.