J Mater Sci Technol ›› 2011, Vol. 27 ›› Issue (4): 382-384.

• Regular Papers • Previous Articles    

Room-temperature Magnetocaloric Effect in (Co0.35Mn0.65)2P Compound

Naikun Sun, Da Li, Songning Xu, Zhenhua Wang, Zhidong Zhang   

  1. 1) Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China
    2) School of Science, Shenyang Ligong University, Shenyang 110168, China
  • Received:2010-07-06 Revised:2010-09-09 Online:2011-04-28 Published:2011-04-28
  • Contact: naikun
  • Supported by:

    the National Natural Science Foundation of China (No. 50831006), the Development Program of High-tech Industries of Shenyang Development and Reform Commission (No. 2009 (104))

Abstract: The (Co0.35Mn0.65)2P compound, prepared by a mechanical alloying plus solid sintering process, exhibits a second-order transition from a ferromagnetic state to a paramagnetic one at Curie temperature of about 320 K with no clear thermal hysteresis. A magnetic-entropy change (?SM) value above 1.6 J?kg-1?K-1 for a 5 T  field change is obtained in the whole temperature range of 292.5-352.5 K and the maximum value of the (?SM is 2.3 ?kg-1?K-1  at 337.5 K. The study on the magnetocaloric effect of the (Co0.35Mn0.65)2P compound may be helpful for exploring good candidates for room-temperature magnetic refrigeration.

Key words: Magnetocaloric, Hysteresis