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The magnetocaloric effect in the vicinity of compensation temperature of ferrimagnetic DyCo4Al alloy

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Abstract

The magnetic and magnetocaloric properties in ferrimagnetic DyCo4Al alloy are investigated in the vicinity of compensation temperature. A compensation temperature closed to room temperature is observed due to the spin-offset. On both sides of compensation temperature, the magnetization presents the abrupt change. As a consequence, two successive positive and negative magnetic entropy change peaks are obtained for this alloy. The appreciable magnetic entropy change values with a very wide refrigerant temperature interval (~200 K) corresponding to the positive magnetic entropy change peak would make this alloy suitable to be used in a magnetic refrigerator.

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Correspondence to Zhenchen Zhong or Dunhui Wang.

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Ma, S., Zhong, Z., Wang, D. et al. The magnetocaloric effect in the vicinity of compensation temperature of ferrimagnetic DyCo4Al alloy. Eur. Phys. J. B 86, 133 (2013). https://doi.org/10.1140/epjb/e2013-30823-y

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  • DOI: https://doi.org/10.1140/epjb/e2013-30823-y

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