【7/12更新】2022年4月1日からのCiNii ArticlesのCiNii Researchへの統合について

Electrical Resistivity of Laves Phase Compounds Containing Transition Elements : I. Fe_2A (A=Sc, Y, Ti, Zr, Hf, Nb, and Ta)(Physics)

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The electrical resistivity of a series of Fe_2A Laves phase compounds was measured in order to investigate its mutual correlation with their magnetic properties. In the ferromagnetic or antiferromagnetic Fe_2A compounds (A=Sc, Y, Ti, Zr, Hf, and U), a linear relation between the magnetic resistivity at temperatures above the Curie or Neel point and the localized magnetic moment was found, which means that the magnetic resistivity of these compounds is governed by the magnitude of magnetic moments. The electrical resistivity in the Pauli-paramagnetic Fe_<2+x>Nb_<1-x> and Fe_<2+x>Ta_<1-x> compounds with x≈0 shows a fairly large temperature variation, which seems to be due to the paramagnon scattering, whereas ρ-T curves in the iron-rich compounds suggest that the appearance of ferromagnetism is caused by the existence of the excess iron atoms occupying the wrong atomic sites.

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