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Deep donor center in Ge1 − x Si x 〈Cu,In,Sb〉 crystals at 1050–1080 K

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Abstract

Hall effect measurements demonstrate that quenching of Ge1 − x Si x 〈Cu,In,Sb〉 (0 ≤ x ≤ 0.20) multiply doped crystals from 1050–1080 K leads to the formation of additional deep donor centers. The energy level of the centers is located in the bottom half of the band gap of the Ge1 − x Si x crystals and is a linear function of host composition. Annealing the crystals at 550–570 K completely eliminates the additional donor levels. The most likely model of the additional deep donors is a pair of substitutional copper and indium atoms (CusIns) or a complex of a copper interstitial and a substitutional indium atom (CuiIns).

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Correspondence to Z. M. Zeynalov.

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Original Russian Text © G.Kh. Azhdarov, Z.M. Zeynalov, V.K. Kyazimova, L.A. Huseynli, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 12, pp. 1418–1422.

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Azhdarov, G.K., Zeynalov, Z.M., Kyazimova, V.K. et al. Deep donor center in Ge1 − x Si x 〈Cu,In,Sb〉 crystals at 1050–1080 K. Inorg Mater 46, 1285–1289 (2010). https://doi.org/10.1134/S0020168510120022

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  • DOI: https://doi.org/10.1134/S0020168510120022

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