Abstract
The magnetization, Hall effect, and resistivity of Heusler alloys Co2FeZ (where Z = Al, Si, Ga, Ge, In, Sn, and Sb are s- and p-elements) have been studied at T = 4.2 K in magnetic fields H ≤ 100 kOe. In strong fields (H > 20 kOe), magnetization can be described by the Stoner model. The normal R 0 and anomalous R S Hall effect coefficients have been determined. The coefficient RS is positive for almost all the studied alloys and represents a “linearly quadratic” resistivity function incorporating linear and quadratic terms. The constant R 0 is negative for most alloys, and its absolute value is two or three orders of magnitude smaller than for R S . The magnetoresistivity of the studied alloys does not exceed several percent and may be both positive and negative for different specimens.
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Original Russian Text © N.I. Kourov, V.V. Marchenkov, Yu.A. Perevozchikova, M. Eisterer, 2017, published in Fizika Tverdogo Tela, 2017, Vol. 59, No. 12, pp. 2330–2337.
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Kourov, N.I., Marchenkov, V.V., Perevozchikova, Y.A. et al. Galvanomagnetic properties of Heusler alloys Co2FeZ (Z = Al, Si, Ga, Ge, In, Sn, Sb). Phys. Solid State 59, 2352–2359 (2017). https://doi.org/10.1134/S1063783417120241
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DOI: https://doi.org/10.1134/S1063783417120241