Magnetic entropy change in (Gd1-xDyx)Si-4 compounds

作者：Xie K^*; Sun ZB; Zhu YM; Yang S; Song XP

来源：Journal of Alloys and Compounds, 2004, 372(1-2): 49-51.

DOI：10.1016/j.jallcom.2003.10.016

• magnetic entropy change
• magnetocaloric effect
• magnetic refrigeration

The magnetic entropy change of (Gd1-xDyx)(5)Si-4 compounds is investigated by measuring the magnetization as a function of temperature. With the increase of the Dy content, the Curie temperature decreases linearly from 338 to 140 K, but the magnetic entropy change in low magnetic fields (< 10 kOe) retains a high value. This suggests that the (Gd1-xDyx)(5)Si-4 compounds are promising candidates for composite magnetic materials which may be used in the active magnetic regeneration (AMR) refrigeration near room temperature in low magnetic fields.

• 出版日期2004-6-9
• 单位西安交通大学