MAGNETIC PHASE TRANSITIONS AND MAGNETIC PROPERTIES OF Nd_3(Fe,Mo)_(29) COMPOUND AND ITS NITRIDE

ＭＡＧＮＥＴＩＣＰＨＡＳＥＴＲＡＮＳＩＴＩＯＮＳＡＮＤＭＡＧＮＥＴＩＣＰＲＯＰＥＲＴＩＥＳＯＦＮｄ３（Ｆｅ，Ｍｏ）２９ＣＯＭＰＯＵＮＤＡＮＤＩＴＳＮＩＴＲＩＤＥ①ＰａｎＨｏｎｇｇｅ，ＷａｎｇＸｉｎｈｕａ，ＣｈｅｎＹｕｎａｎｄＣｈｅｎＣｈａｎｇｐｉｎＤ...

Ironrich ternary intermetallic compound Nd3(Fe,Mo)29 with the Nd3(Fe,Ti)29type monoclinic structure and its nitride were prepared. The intrinsic magnetic properties, magnetic phase transitions, and the magnetocrystalline anisotropy, have been investigated. The results show that the Curie temperature of Nd3(Fe,Mo)29 nitride is 675 K, which is 70.9% higher than that of parent compound (395 K), the saturation magnetization σS and anisotropy fields HA are 151.0 Am2/kg and 14.0 T at 4.2 K, 116.0 Am2/kg and 1.6 T at 300 K for Nd3(Fe,Mo)29 compound, 161.0 Am2/kg and 18.0 T at 4.2 K, 143.5 Am2/kg and 4.2 T at 300 K for Nd3(Fe,Mo)29NX nitride, respectively; the magnetocrystalline anisotropy of the Nd3(Fe,Mo)29 compound is planar above about 230 K and easy cone from 4.2 K to 230 K, after nitrogenation, the spin reorientation phenomenon was no longer observed.