Thermal Expansion, Magnetic and Electrical Properties of Ternary Compound DyCo_0.67Ga_1.33

Abstract:

The ternary compound DyCo_0.67Ga_1.33 was synthesized and the thermal expansion of DyCo_0.67Ga_1.33 was studied in the temperature range of 309–608 K by high temperature powder X-ray diffraction technique. The volumetric coefficient of thermal expansion, , can be represented by . Its magnetic properties were measured between 30 and 300 K, and the magnetic susceptibility of DyCo_0.67Ga_1.33 was found to follow the Curie–Weiss law in the temperature range of 40–300 K. The effective magnetic moment and paramagnetic Curie temperature were estimated to be 9.86 μ_B and 40.4 K, respectively. Electrical resistivity of the compound DyCo_0.67Ga_1.33 was also measured between 5 and 300 K. Temperature variation of the electrical resistivity suggests the metallic character of the compound DyCo_0.67Ga_1.33 with an anomaly detected at 45 K. The residual resistivity ratio RRR of the compound is about 1.2.

• Periodical: Materials Science Forum (Volume 848)
• Pages: 703-708
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.848.703
• Online since: March 2016
• Authors: Liu Qing Liang, Ling Min Zeng, Shu Hui Liu, De Gui Li, Ming Qin
• Keywords: Electrical Properties, Magnetic Properties, Thermal Expansion

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