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Combined giant inverse and normal magnetocaloric effect for room-temperature magnetic cooling
Journal article

Combined giant inverse and normal magnetocaloric effect for room-temperature magnetic cooling

Xi Xiang Zhang, Bei Zhang, Shuyun Yu, Zhuhong Liu, Wenjin Xu, Guodong Liu, Jinglan Chen, Zexian Cao and Guangheng Wu
Physical review. B, Condensed matter and materials physics, Vol.76(13)
01/10/2007

Abstract

Materials Science Materials Science, Multidisciplinary Physical Sciences Physics Physics, Applied Physics, Condensed Matter Science & Technology Technology
In this Brief Report, we report on the observation of a giant positive (inverse) magnetic entropy change (about 28.6 J K-1 kg(-1) at 5 T magnetic field) below 300 K and a modest negative (normal) entropy change (about 6.6 J K-1 kg(-1) at 5 T) above 300 K in a Ni50Mn33.13In13.90 single crystal. This temperature-dependent entropy change may suggest that both the magnetizing and demagnetizing processes can be employed for cooling.

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