Large Magnetic Entropy Effect in La2/3Ca1/3MnO3
来源期刊：JOURNAL OF RARE EARTHS2004年第2期
论文作者：彭振生
Key words：metal materials; magnetocaloric effect; colossal magnetoresistance; perovskite; entropy; rare earths;
Abstract: The magnetocaloric effect in the colossal magnetoresistance material La2/3Ca1/3MnO3 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.
彭振生1
(1.Department of Physics,Suzhou Advanced Normal College,Suzhou 234000,China)
Abstract:The magnetocaloric effect in the colossal magnetoresistance material La2/3Ca1/3MnO3 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.
Key words:metal materials; magnetocaloric effect; colossal magnetoresistance; perovskite; entropy; rare earths;
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