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Thermoelectric properties and ferromagnetism of diluted magnetic semiconductors Sb2 − x Cr x Te3

  • Low-Temperature Solid-State Physics
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Abstract

Thermoelectric properties of single crystals of a new dilute magnetic semiconductor p-Sb2 − x Cr x Te3 are studied in the temperature interval 7–300 K. The temperature dependences of the thermal conductivity are measured. The Seebeck coefficient S is found to increase upon doping with Cr. At low temperatures, a ferromagnetic phase with Curie temperature T C ≈ 5.8 K exists for a Cr concentration x = 0.0215, its easy magnetization axis being parallel to the crystallographic axis C 3. At T = 4.2 K, a negative magnetoresistance and anomalous Hall effect are observed; in strong magnetic fields, the Shubnikov-de Haas effect is manifested.

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Authors and Affiliations

  1. Moscow State University, Vorob’evy gory, Moscow, 119992, Russia

    P. M. Tarasov, V. A. Kulbachinskiĭ & V. G. Kytin

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  1. P. M. Tarasov
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  2. V. A. Kulbachinskiĭ
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  3. V. G. Kytin
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Original Russian Text © P.M. Tarasov, V.A. Kulbachinskiĭ, V.G. Kytin, 2007, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 132, No. 1, pp. 31–36.

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Tarasov, P.M., Kulbachinskiĭ, V.A. & Kytin, V.G. Thermoelectric properties and ferromagnetism of diluted magnetic semiconductors Sb2 − x Cr x Te3 . J. Exp. Theor. Phys. 105, 21–26 (2007). https://doi.org/10.1134/S1063776107070060

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  • DOI: https://doi.org/10.1134/S1063776107070060

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