Magnetocaloric effect in the layered organic–inorganic hybrid（CH_3NH_3）_2CuCl_4

We present a study of magnetocaloric effect of the quasi-two-dimensional（2D） ferromagnet（CH_3NH_3）_2CuCl_4 in ab plane（easy-plane）. From the measurements of magnetic field dependence of magnetization at various temperatures,we have discovered a large magnetic entropy change associated with the ferro...

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Published in中国物理B：英文版 Vol. 27; no. 2; pp. 547 - 550
Main Author 马怡妮娜;翟昆;闫丽琴;柴一晟;尚大山;孙阳
Format Journal Article
LanguageEnglish
Published 2018
Subjects
居里温度;水晶结构;铁磁性;工作物质;制冷技术;熵变化;混血儿;候选人
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Summary:We present a study of magnetocaloric effect of the quasi-two-dimensional（2D） ferromagnet（CH_3NH_3）_2CuCl_4 in ab plane（easy-plane）. From the measurements of magnetic field dependence of magnetization at various temperatures,we have discovered a large magnetic entropy change associated with the ferromagnetic–paramagnetic transition. The heat capacity measurements reveal an abnormal adiabatic change below the Curie temperature T_c~8.9 K, which is caused by the nature of quasi-2D layered crystal structure. These results suggest that perovskite organic–inorganic hybrids with a layered structure are suitable candidates as working substances in magnetic refrigeration technology.
Bibliography:magnetocaloric effect organic–inorganic hybrid （CH3NH3）2CuCl4
11-5639/O4
We present a study of magnetocaloric effect of the quasi-two-dimensional（2D） ferromagnet（CH_3NH_3）_2CuCl_4 in ab plane（easy-plane）. From the measurements of magnetic field dependence of magnetization at various temperatures,we have discovered a large magnetic entropy change associated with the ferromagnetic–paramagnetic transition. The heat capacity measurements reveal an abnormal adiabatic change below the Curie temperature T_c~8.9 K, which is caused by the nature of quasi-2D layered crystal structure. These results suggest that perovskite organic–inorganic hybrids with a layered structure are suitable candidates as working substances in magnetic refrigeration technology.
ISSN:1674-1056
2058-3834