Magnetism and 57 Fe Mössbauer effect in amorphous fe-base alloys: Significance of charge transfer and short-range atomic ordering

A review is given of the magnetic properties of amorphous A 1-x Fe x alloys studied by bulk magnetic measurements and57Fe Mossbauer spectroscopy (A=Mg,La, Lu,Y,Th,Hf,Zr,Ti,Nb,V,Mo,Ge,Si,B). Several mechanisms are discussed that can be held responsible for the reduction of the Fe moment observed upon alloying. The57Fe isomer shift in most of the amorphous A 1-x Fe x alloys was analysed in terms of the Miedema-Van der Woude model. On the basis of this analysis an experimental estimate of the amount of A-Fe charge transfer and intraatomic s-d electron conversion was obtained. It is shown that these two quantities are less relevant when dealing with the reduction in Fe moment upon combining A and Fe.

[1]  C. Chien,et al.  Mössbauer study of sputtered Fe-Ti alloys with wide composition range , 1984 .

[2]  K. Buschow,et al.  Fe57Mössbauer isomer shift in various amorphous Fe-base alloys , 1983 .

[3]  A. Malozemoff,et al.  Magnetism of amorphous metal-metal alloys , 1983 .

[4]  C. Chien,et al.  Magnetic properties of amorphous Fe-Nb and Fe-Zr , 1983 .

[5]  C. Chien,et al.  Amorphous FexNb100−x with wide composition range* , 1982 .

[6]  K. Buschow,et al.  57 Fe Mössbauer effect and magnetic properties in amorphous Fe-based alloys , 1982 .

[7]  J. Coey,et al.  Amorphous yttrium-iron alloys. II. Mossbauer spectra , 1981 .

[8]  K. Fukamichi,et al.  The Curie temperature and magnetization of Fe-base amorphous binary alloys containing transition metal , 1981 .

[9]  C. Chien,et al.  Magnetic properties of amorphousFexB100−x(0 , 1981 .

[10]  K. Buschow,et al.  Magnetic and magneto‐optical properties of amorphous A1−xFex alloys (A = B, Ge, and Sn) , 1981 .

[11]  K. Buschow,et al.  Magnetic and electrical transport properties of amorphous Zr-Fe alloys , 1981 .

[12]  K. Buschow,et al.  Magnetic properties of amorphous rare-earth—Iron alloys , 1981 .

[13]  B. Rodmacq,et al.  Structure and magnetic properties of amorphous Fe x Sn 1 − x alloys , 1980 .

[14]  K. Buschow,et al.  Magnetic properties of amorphous Th1−xFex alloys , 1979 .

[15]  N. Kazama,et al.  Magnetic properties of amorphous alloys of Fe with La, Lu, Y, and Zr , 1979 .

[16]  C. Janot,et al.  About the magnetic behaviour of FexMe1-x (Me=Si, Ge, Sn) amorphous alloys , 1978 .

[17]  H. Güntherodt,et al.  Electronic structure of amorphous transition metal alloys , 1976 .

[18]  K. Buschow,et al.  Mossbauer effect investigation of Y-Fe compounds , 1974 .