Large Magnetic Entropy Effect in La_(2/3)Ca_(1/3)MnO_3

作     者：彭振生 

作者机构：Department of Physics Suzhou Advanced Normal College Suzhou 234000 China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2004年第22卷第2期

页      面：232-234页

核心收录：

学科分类：080801[工学-电机与电器] 0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina ( 1993 40 0 3 )andtheStateKeyProjectofFundamentalResearchofChina ( 0 0 1CB610 60 4) 

主　　题：metal materials magnetocaloric effect colossal magnetoresistance perovskite entropy rare earths 

摘      要：The magnetocaloric effect in the colossal magnetoresistance material La_(2/3)Ca_(1/3)MnO_3 was studied. From the measurements of temperature dependence of magnetization in various magnetic fields, the large magnetic entropy change associated with the ferromagnetic-paramagnetic transition was discovered. This result suggests that perovskite manganites are suitable candidates as working substance in magnetic refrigeration technology.