THERMOELECTRIC POWER IN AMORPHOUS Fe₈₄B₁₆ WITH SMALL AMOUNTS OF V, Nb AND Ta ADDITIVES

The thermoelectric power in amorphous (Fe_1-xT_x)₈₄B₁₆ alloys, where T stands for V, Nb, Ta and x ranges from 0 to 0.08, is measured in the temperature range 77-350K. The results can be qualitatively understood using Mott s-d scattering model or Herzer's theory on the assumption of the occurrence of a virtual bound state near Fermi level. The differences between FeVB, FeNbB and FeTaB systems confirm the existence of a period effect in these alloys.