摘要
通过 X射线衍射和磁测量等手段对金属间化合物 Nd(Fe1 - x Cox) 1 0 V2 的结构和磁性进行了研究。结果表明 ,金属间化合物 Nd(Fe1 - x Cox) 1 0 V2 (x=0 ,0 .0 5 ,0 .1,0 .15 ,0 .2 )的晶体结构均为 Th Mn1 2 型结构 ;随着 Co含量 x的增大 ,晶格常数 a、c和晶胞体积 V将单调减小 ,居里温度 Tc呈单调增大 ,饱和磁化强度 Ms逐渐增加。取向样品Nd Fe1 0 V2 的 X射线衍射和变温穆斯堡尔谱研究结果表明该化合物在 T=12 0 K条件下存在自旋重取向现象。
The crystal structure and magnetic properties of intermetallic compounds Nd(Fe 1-xCo x) 10V 2 were studied by X-ray diffraction and magnetic measurements methods.The following conclusions were obtained:All intermetallic compounds Nd(Fe 1-xCo x) 10V 2(x=0,0.05,0.1,0.15,0.2) crystallize in ThMn 12-type structure,the lattice parameters a,c and unit-cell volume V all decrease monotonicly with the increasing of Co atom content x,Curie temperature Tc exist a monotonic increasing with Co atom content x,and the saturation magnetization Ms increase gradually with Co atom content x. The experimental results of X-ray diffraction and Mossbauer spectroscopy at different temperature indicate that there exists a spin reorientation at T=120K in the oriented sample NdFe 10V 2.
出处
《稀土》
EI
CAS
CSCD
北大核心
2002年第2期23-25,42,共4页
Chinese Rare Earths
基金
江西省自然科学基金资助项目 ( 995 0 0 35 )
