摘要
在温度为２９５Ｋ～８０Ｋ范围内，应用穆斯堡尔效应方法，测量了Ｅｒ２Ｆｅ１７ＣｘＮｙ系稀土化合物Ｅｒ２Ｆｅ１７ＣＮ的穆斯堡尔谱．结果表明，用Ｃ，Ｎ原子掺杂渗入Ｅｒ２Ｆｅ１７化合物替换Ｅｒ３＋离子后形成的Ｅｒ２Ｆｅ１７ＣＮ化合物，影响了Ｅｒ２Ｆｅ１７化合物原来的自旋重定转换温度ＴＣ，并使自旋重定转换角度θ也发生了变化，出现了两个自旋重定转换温度ＴＣ１，ＴＣ２．ＴＣ１２００Ｋ，ＴＣ２８０Ｋ．这说明稀土化合物Ｅｒ２Ｆｅ１７ＣＮ磁矩是突变的（一级相变）．
Raer earth compound Er 2Fe 17 CN have been investigated by 57 Fe M o.. ssbauer spectroscopy under the temperature from 295K to 80 K. Our study shows that introducing interstitial carbon and nitrogen into Er 2Fe 17 make Er 2Fe 17 CN compound. The substitution of C and N for Er 3+ affects spin reorienation transition temperature T c and transition angle θ . Tow transition temperature T c 1 200 K, T c 2 80 K are derived from it. By this the jump of magnetic moment of compound Er 2Fe 17 CN (first order phase trasition) is explained.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第2期4-4,共1页
Journal of Shaanxi Normal University：Natural Science Edition
关键词
穆斯保尔效应
转换温度
稀土化合物
自旋
M o.. ssbauer effection
spin reorienation transition temperature T c
Er 2Fe 17 CN
