Structure, Magnetocaloric Effect and Critical Behavior of the Fe60Co12Gd4Mo3B21 Amorphous Ribbons

The aim of the paper was to study the structure, magnetic properties and critical behavior of the Fe60Co12Gd4Mo3B21 alloy. The X-ray diffractometry and the Mossbauer spectroscopy studies confirmed amorphous structure. The analysis of temperature evolution of the exponent n (Delta S-M = C center dot(B-max)(n)) and the Arrott plots showed the second order phase transition in investigated material. The analysis of critical behavior was carried out in order to reveal the critical exponents and precise T-C value. The ascertained critical exponents were used to determine the theoretical value of the exponent n, which corresponded well with experimental results.

Automated summary

The aim of this paper is to study the structure, magnetic properties, and critical behavior of the Fe60Co12Gd4Mo3B21 alloy. The amorphous structure and second order phase transition were confirmed by X-ray diffractometry and Mossbauer spectroscopy studies. The analysis of critical behavior revealed the critical exponents and precise T-C value for the alloy.