Comparison between magnetoresistivity and  magnetothermopower in Bi93.99Mn6Fe0.01

V. N. Svetlov B. I.Verkin Institute for Low Temperature Physics and Engineering of National Academy of Science of Ukraine
V. B. Stepanov B. I. Verkin Institute for Low Temperature Physics and Engineering of National Academy of Science of Ukraine
A. V. Terekhov B. I. Verkin Institute for Low Temperature Physics and Engineering of National Academy of Science of Ukraine
E. V. Khristenko B. I. Verkin Institute for Low Temperature Physics and Engineering of National Academy of Science of Ukraine
A. D. Shevchenko G.V. Kurdumov Institute of the Metallophisics of National Academy of Science of Ukraine
O. M. Ivasishin G.V. Kurdumov Institute of the Metallophisics of National Academy of Science of Ukraine
A. L. Solovjov B. I. Verkin Institute for Low Temperature Physics and Engineering of National Academy of Science of Ukraine
Z. D. Kovalyuk I. M. Frantsevich Institute for Problems of Materials of Science. Chernovtsy Department of National Academy of Science of Ukraine

Keywords: magnetic field, resistivity, magnetoresistivity, thermopower, magnetothermopower

Abstract

For the first time magnetoresistivity Δρ/ρ and magnetothermopower ΔS/S in textured polycrystalline samples of Bi93.99Mn6Fe0.01 were studied in a wide temperature range (300 ÷ 4.2) К and in magnetic field B=3 T. The peculiarities on the temperature dependencies of resistivity ρ, magnetoresistivity Δρ/ρ, thermopower S and magnetothermopower ΔS/S were found. These peculiarities are likely due to modification of the band structure of the charge carrier energy spectrum and/or spin-dependent scattering of charge carriers under magnetic field. It is shown that the peculiarities on the temperature dependence of Δρ/ρ and ΔS/S correlate each other very well.
magnetic field; resistivity; magnetoresistivity; thermopower; magnetothermopower

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