CRITICAL PHENOMENA OF AMORPHOUS Fe13Ni67.2P4.5B15.3 ALLOYS | Zendy

Shen Bao-Gen | Zendy; ZHAO JIAN-GAO | Zendy; Wen-shan Zhan | Zendy; Jinchang Chen | Zendy

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CRITICAL PHENOMENA OF AMORPHOUS Fe13Ni67.2P4.5B15.3 ALLOYS

Author(s) -

Shen Bao-Gen,

ZHAO JIAN-GAO,

Wen-shan Zhan,

Jinchang Chen

Publication year - 1986

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.35.124

Subject(s) - condensed matter physics , curie temperature , curie–weiss law , curie's law , paramagnetism , ferromagnetism , curie , curie constant , magnetization , phase transition , atmospheric temperature range , amorphous solid , physics , materials science , magnetic field , thermodynamics , chemistry , quantum mechanics , crystallography

Results of the magnetization measurements performed on the amorphous Fe13Ni67.2P4.5B15.3 alloy in the temperature range 1.5 to 300 K in fields up to 40 kOe are reported. The behaviour near the Curie temperature is found to obey second-order phase transition laws with critical indices: β=0.39±0.02;γ=1.56±0.06; δ=5.20±0.1, and the ferromagnetic Curie temperature Tc = (180.4 ± 0.2)K. Within experimental error the critical indices satisfy the scaling law relationship γ=β(δ-l). The data satisfy the magnetic equation of state characteristic of a second-order phase transition in the temperature range 168 to 192 K. Above 270 K, the paramagnetic susceptibility obeys the Curie-Weiss law. From the Curie constant c, we obtain the effective magnetic moment peff=3.19 μB.

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