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Zero Field Spin-Dependent Recombination

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Abstract

Spin-dependent recombination (SDR) has been studied in forward biased p–n-junction of disordered Si under constant magnetic field scanned from 0 to 8 Oe. The spin-dependent signal is considered within the Kaplan–Solomon–Mott mechanism of SDR through paired paramagnetic centers. The SDR has been registered as a conductivity modulation induced by electromagnetic wave for various frequencies (from 1.5 to 7 MHz). The resonant value of the constant field for this range is comparable with the half width of the resonance. There is, thus, a nonzero SDR value at zero constant field. This value is attributed not only to a local field but also to the contribution of the alternating magnetic field. The zero field SDR—electromagnetic frequency dependencies are nonmonotonous with a drop at the short wave edge. Theoretical analysis of the alternating magnetic field contribution into the zero field signal has been made.

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Kozonushchenko, O.I., Kislyuk, V.V., Barabanov, A.V. et al. Zero Field Spin-Dependent Recombination. Journal of Superconductivity 16, 431–433 (2003). https://doi.org/10.1023/A:1023671032340

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  • DOI: https://doi.org/10.1023/A:1023671032340

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