Investigation of Critical Behavior in Gd₇₅Ge₁₅Si₅Ce₅ Alloy

• Authors: P. Gębara , M. Hasiak
• Languages of publication: EN

Abstracts

EN

The main goal of the present work was to study the critical behavior in the as-quenched Gd₇₅Ge₁₅Si₅Ce₅ (wt%) in the vicinity of the critical temperature T_{C}. The second order phase transition from a ferro- to a paramagnetic state was confirmed by the positive slope of the Arrott plots and analysis of temperature evolution of the Landau coefficients. The critical exponents have been revealed using the Kouvel-Fisher method and yield β=0.376±0.006, γ=1.032±0.006 and δ=3.835±0.008. The Curie temperature for the as-quenched Gd₇₅Ge₁₅Si₅Ce₅ equals 275.7±0.1 K.

Keywords

EN

75.30.Sg; 75.50.Bb

Discipline

• 75.50.Bb: Fe and its alloys
• 75.30.Sg: Magnetocaloric effect, magnetic cooling(for cryogenics, see 07.20.Mc)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 5
• Pages: 1232-1235

Dates

published

2017-05

Contributors

author

P. Gębara

• Institute of Physics, Częstochowa Universtity of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

M. Hasiak

• Department of Mechanics and Materials Science, Wrocław University of Science and Technology, M. Smoluchowskiego 25, 50-370 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.131.1232