Large magnetocaloric effect in Laves phase TbMn1.8Fe0.2 compound over a wide temperature range
Large magnetocaloric effect in Laves phase TbMn1.8Fe0.2 compound over a wide temperature range
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Laves 相 TbMn1.8Fe0.2 化合物在宽温度范围内的大磁热效应
DOI:
10.1016/j.jallcom.2012.03.095
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发表时间:
2012-07
影响因子:
6.2
通讯作者:
Yosikazu Isikawa
中科院分区:
文献类型:
--
作者:
Katsuhiko Nishimura;Lingwei Li;Takahiro Namiki;Yosikazu Isikawa
The magnetic properties and magnetocaloric effect of C15 Laves phase TbMn1.8Fe0.2were studied by magnetization and heat capacity measurements. The compound undergoes a second-order magnetic Tb–Tb sublattice ordering transition at its Curie temperature TC∼80K, and a Fe–Fe ordering transition at ∼230K. A large magnetocaloric effect was observed around Tb–Tb ordering temperature with no obvious thermal and magnetic hysteresis loss. The maximum value of magnetic entropy change reaches 9.48Jkg−1K−1for a magnetic field change ΔH=5T. The corresponding maximum adiabatic temperature change is evaluated to be 3.5K with a wide effective temperature range. The obtained relative cooling power reaches 235, 607, and 869Jkg−1for ΔH=2, 5 and 7T, respectively. These values indicate that TbMn1.8Fe0.2could be a promising candidate for magnetic refrigeration.
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影响因子:
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作者:
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通讯作者:
Tokura, Y.
影响因子:
8.6
作者:
D. Ryan;M. Elouneg-Jamróz;J. van Lierop;Z. Altounian;H. Wang
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D. Ryan;M. Elouneg-Jamróz;J. van Lierop;Z. Altounian;H. Wang
影响因子:
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作者:
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DOI:
10.1002/9781119562269.ch2
发表时间:
2020-11
期刊:
Magnetic Memory Technology
影响因子:
--
作者:
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通讯作者:
D. Tang;C. Pai
影响因子:
64.8
作者:
Tegus, O;Brück, E;de Boer, FR
通讯作者:
de Boer, FR