Magnetic and thermodynamic properties of Eu-filled skutterudites
2001
Abstract We present results of magnetisation, resistivity, thermopower and thermal conductivity measurements on the compound Eu 0.83 Fe 4 Sb 12 , which orders magnetically below 84 K. An interesting feature of this compound is the large positive magnetoresistance, reaching values of 130% at 2 K and 12 T, and still 30% at room temperature. Fe/Co substitution causes a drop in the magnetic ordering temperature T mag and an increase of the thermopower values, which is expected from a decrease of the charge carrier density.
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