Magnetocaloric Effect of Perovskite Manganites Ce0.67Sr0.33MnO3

被引：54

作者：

Hamad, Mahmoud Aly ^{[1
]}

机构：

[1] Al Jouf Univ, Dept Phys, Coll Sci, Skaka, Al Jouf, Saudi Arabia

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2013年 / 26卷 / 09期

关键词：

Magnetic materials; Phase transitions; Thermomagnetic effects;

D O I：

10.1007/s10948-013-2124-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetocaloric properties of the Ce0.67Sr0.33 MnO3 system near a phase transition from a ferromagnetic to a paramagnetic state are investigated. The value of the magnetocaloric effect has been determined from the calculation of magnetization as a function of temperature under different external magnetic fields. The Delta S-M distribution is uniform, which is desirable for an Ericson-cycle magnetic refrigerator. The data show that Ce0.67Sr0.33MnO3 can be used as a working material of an apparatus based on the active magnetic regenerator cycle that cools hydrogen gas from the temperature of liquid natural gas to nearly the boiling point of hydrogen.

引用

页码：2981 / 2984

页数：4

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