COHERENT-POTENTIAL APPROXIMATION FOR AMORPHOUS FERROMAGNETIC Fe-TM-B ALLOYS
非晶态铁磁性Fe—TM—B合金的相干势近似

A concentration-dependent Curie temperature for amorphous (Fe1-xTMx)1-yBy alloys is given as a solution of a cubic equation using the coherent-potential approximation; and a conclusion has been reached for the exchange inreraction, that JFe-Fe is positive, JTM-TM and JFe-TM are negative. The present conclusion is different from Onodera's result for Fe-Mn-B alloys.