Magnetic Phase Transitions and Magnetocaloric Properties of Gd₅Si_0.4In_3.6 Compound

Abstract:

The magnetic phase transitions and magnetocaloric properties of Gd₅Si_0.4In_3.6 compound have been investigated. Magnetothermal measurements performed at different conditions reveal that the sample undergoes two magnetic phase transitions. One is a second-order transition from paramagnetic to ferromagnetic state at about 197 K, the other is a first-order transition when the temperature is reduced to 75 K. The magnetocaloric effect around Curie temperature (T_C) was calculated in terms of isothermal magnetic entropy change by using Maxwells equation,which remains over a quite wide temperature span of 70 K between the temperature region from160 to 240 K, and thus makes this material attractive for magnetic refrigerator applications.

• Periodical: Applied Mechanics and Materials (Volume 320)
• Pages: 67-71
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.320.67
• Online since: May 2013
• Authors: Chao Jing, X.L. Wang, D.H. Yu, Y.J. Yang, B.J. Kang, S.X. Cao, J.C. Zhang, Z. Li, J. Zhu, B. Lu
• Keywords: Gd₅Si_0.4In_3.6 Compound, Magnetic Entropy Change, Magnetocaloric Effect

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