Abstract
We have studied the electronic properties of Bi2Te3〈Cu〉 crystals. The results indicate that, during natural growth and subsequent self-intercalation, copper layers are formed between Te(I)-Te(I) layers in the basal plane (0001). On cleaved (0001) surfaces, quasi-two-dimensional layers with islands were found. Studies of Shubnikov-de Haas-like 4.2-K magnetoresistance oscillations in Bi2Te3〈Cu〉 revealed additional series of oscillations for H ⊥ C ⊥ I. We observed magnetoresistance oscillations at temperatures from 240 to 280 K, due to the magnetophonon resonance. The magnetophonon oscillations in self-intercalated Bi2Te3〈Cu〉 are periodic and better defined in comparison with copper-intercalated Bi2Te3.
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Original Russian Text © S.Sh Kakhramanov, 2008, published in Neorganicheskie Materialy, 2008, Vol. 44, No. 1, pp. 17–25.
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Kakhramanov, S.S. Self-intercalation in Bi2Te3〈Cu〉. Inorg Mater 44, 13–20 (2008). https://doi.org/10.1134/S0020168508010032
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DOI: https://doi.org/10.1134/S0020168508010032