论文标题
压力效应l1 $ _0 $ feni中的订单disorder转换
Pressure effect on the order-disorder transformation in L1$_0$ FeNi
论文作者
论文摘要
已知Feni系统的有序阶段具有有希望的磁性特性作为无稀土的永久磁铁。了解控制订单订单转换的参数空间对于找到稳定$ L1_0 $相位的增长条件很重要。使用第一原理理论研究了FENI的磁性特性和FENI的化学秩序转化是晶格扩展的函数。热力学和磁计算是使用远程订单参数进行的，该参数用于找到订购温度。负压促进排序，因此涉及量增加体积的合成路线有望扩大$ L1_0 $相位的稳定性场。
The ordered phase of the FeNi system is known to have promising magnetic properties as a rare-earth-free permanent magnet. Understanding the parameter space that controls the order-disorder transformation is important to find growth conditions that stabilize the $L1_0$ phase. Magnetic properties and chemical order-disorder transformation of FeNi are investigated as a function of lattice expansion using first-principles theory. Thermodynamic and magnetic calculations are performed using long-range order parameters, which is used to find the ordering temperature. Negative pressure promotes ordering and thus synthetic routes involving an increase in volume is expected to expand the stability field of the $L1_0$ phase.
