磁制冷剂MnFe（P1-xGex）磁热效应的起源和调节
Origin and tuning of the magnetocaloric effect for the magnetic refrigerant MnFe(P1-xGex)
摘要：
磁制冷剂Mn 1 + yFe 1-yP 1-xGex的中子衍射和磁化强度测量表明，铁磁相和顺磁相对应于两种非常不同的晶体结构，磁熵变作为磁场或温度的函数，直接受一级相变相分数的控制。通过调节该系统的物理性质，我们已经实现了最大磁熵变超过74 J/Kg K的增加和减少的领域，超过以前记录的值的两倍。
英文摘要：
Neutron diffraction and magnetization measurements of the magneto refrigerant Mn1+yFe1-yP1-xGex reveal that the ferromagnetic and paramagnetic phases correspond to two very distinct crystal structures, with the magnetic entropy change as a function of magnetic field or temperature being directly controlled by the phase fraction of this first-order transition. By tuning the physical properties of this system we have achieved a maximum magnetic entropy change exceeding 74 J/Kg K for both increasing and decreasing field, more than twice the value of the previous record.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
