Study of low-energy magnetic excitations in single-crystalline CeIn3 by inelastic neutron scattering
Study of low-energy magnetic excitations in single-crystalline CeIn3 by inelastic neutron scattering
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DOI：
10.1088/0953-8984/15/22/308
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发表时间：
2003-06-11
影响因子：
2.7
通讯作者：
Flouquet, J
中科院分区：
文献类型：
--
作者：
Knafo, W;Raymond, S;Flouquet, J
非弹性中子散射实验进行了单晶的重费米子化合物CeIn 3的温度低于和高于尼尔温度，TN。在反铁磁有序相，定义良好的自旋波激发的带宽为2毫电子伏的观察。自旋波与准弹性（QE）近藤型自旋涨落和加宽的晶体场（CF）激发共存。在T-N以上，只有QE和CF激发持续存在，具有弱的温度依赖性。
Inelastic neutron scattering experiments were performed on single crystals of the heavy-fermion compound CeIn3 for temperatures below and above the Neel temperature, T-N. In the antiferromagnetically ordered phase, well-defined spin-wave excitations with a bandwidth of 2 meV are observed. The spin waves coexist with quasielastic (QE) Kondo-type spin fluctuations and broadened crystal-field (CF) excitations below T-N. Above T-N, only the QE and CF excitations persist, with a weak temperature dependence.