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Characterization of Mn-doped Sb1.5Bi0.5Te3 single crystals |
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| Authors: | T. Plechacek P. Svanda C. Draar L. Benes A. Krejá P. Lostk |
| Affiliation: | 1. Joint Laboratory of Solid State Chemistry of the Academy of Sciences of the Czech Republic and University of Pardubice , Studentská 84, 532 19, Pardubice, Czech Republic;2. Faculty of Chemical Technology , University of Pardubice , nám. Legü 565, 532 10, Pardubice, Czech Republic;3. Faculty of Chemical Technology , University of Pardubice , nám. Legü 565, 532 10, Pardubice, Czech Republic;4. Joint Laboratory of Solid State Chemistry of the Academy of Sciences of the Czech Republic and University of Pardubice , Studentská 84, 532 19, Pardubice, Czech Republic |
| Abstract: | Abstract Single crystals of (Sb0.75Bi0.25)2-xMnxTe3 (x = 0.0–0.05) were characterized by X-ray diffraction, measurements of reflectance in the plasma resonance frequency region, Hall coefficient, electrical conductivity, and Seebeck coefficient. It was found that Mn atoms in the crystal structure of Sb1.5Bi0.5Te3 behave like acceptors; the increase in the hole concentration is explained by the formation of substitutional defects of Mn'Sb and Mn'Bi in the crystal lattice of the studied crystals. |
| Keywords: | Crystals of tetradymite structure Reflectance in the plasma resonance frequency region Hall and Seebeck coefficients Electrical conductivity Lattice defects |