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
复制标题

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
复制
发表时间:
2012-07
影响因子:
6.2
通讯作者:
Yosikazu Isikawa
Yosikazu Isikawa
中科院分区:
材料科学2区
文献类型:
--
作者:
Katsuhiko Nishimura;Lingwei Li;Takahiro Namiki;Yosikazu Isikawa

文献摘要

参考文献

被引文献

相似文献

通过磁化和热容测试研究了C15 Laves相tbmn1.8 fe0.2的磁性能和磁热效应。该化合物在居里温度(TC ~ 80K)和居里温度(~ 230K)下分别发生了二级磁性Tb-Tb亚晶格有序转变和Fe-Fe有序转变。在Tb-Tb有序温度附近观察到较大的磁热效应,无明显的热磁滞损失。当磁场变化ΔH=5T时,磁熵变化最大值为9.48Jkg−1K−1。相应的最大绝热温度变化为3.5K,有效温度范围较宽。当ΔH=2、5和7T时,得到的相对冷却功率分别为235、607和869Jkg−1。这些数值表明,tbmn1.8 fe0.2可能是一种很有前途的磁致冷材料。
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.
DOI: 10.1103/physrevlett.99.086401
发表时间: 2007-08-24
影响因子: 8.6
作者:
Hanasaki, N.;Watanabe, K.;Tokura, Y.
通讯作者: Tokura, Y.
DOI: 10.1103/physrevlett.90.117202
发表时间: 2003-03
影响因子: 8.6
作者:
D. Ryan;M. Elouneg-Jamróz;J. van Lierop;Z. Altounian;H. Wang
通讯作者: D. Ryan;M. Elouneg-Jamróz;J. van Lierop;Z. Altounian;H. Wang
DOI: 10.1063/1.3130090
发表时间: 2009-05
影响因子: 4
作者:
Qiang Zhang;J. Cho;B. Li;Wei-Zhi Hu;Z. Zhang
通讯作者: Qiang Zhang;J. Cho;B. Li;Wei-Zhi Hu;Z. Zhang
DOI: 10.1002/9781119562269.ch2
发表时间: 2020-11
期刊: Magnetic Memory Technology
影响因子: --
作者:
D. Tang;C. Pai
通讯作者: D. Tang;C. Pai
DOI: 10.1038/415150a
发表时间: 2002-01-10
期刊: NATURE
影响因子: 64.8
作者:
Tegus, O;Brück, E;de Boer, FR
通讯作者: de Boer, FR