Magnetocaloric effect in Gd6Co1.67Si3 compound with a second-order phase transition |
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| Authors: | Shen Jun Li Yang-Xian Dong Qiao-Yan Wang Fang and Sun Ji-Rong |
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| Institution: | School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China; School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China;State Key Laboratory for Magnetism, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China; State Key Laboratory for Magnetism, Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | The magnetic properties and the magnetic entropy change \Delta S
have been investigated for Gd6Co1.67Si3 compounds
with a second-order phase transition. The saturation moment at 5K
and the Curie temperature TC are 38.1\muB and
298K, respectively. The \Delta S originates from a reversible
second-order magnetic transition around TC and its value
reaches 5.2J/kg.K for a magnetic field change from 0 to
5T. The refrigerant capacity (RC) of Gd6Co1.67Si3
are calculated by using the methods given in Refs.12] and 21],
respectively, for a field change of 0--5T and its values are 310
and 440\,J/kg, which is larger than those of some magnetocaloric
materials with a first-order phase transition. |
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| Keywords: | Gd6Co1 67Si3
compound magnetic properties magnetic entropy change |
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