Sato T J, Kadowaki H, Yoshizawa H, Takabatake T, Fujii H, Isikawa Y
Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan.
J Phys Condens Matter. 1996 Sep 16;8(38):7127-38. doi: 10.1088/0953-8984/8/38/015.
Single-crystal neutron scattering experiments have been performed to study magnetic excitations in [Formula: see text], in which the pseudo-gap of CeNiSn is suppressed by the doping. In CeNiSn there are two inelastic excitation peaks at [Formula: see text] and 4 meV, which correspond to dynamic antiferromagnetic correlations. In [Formula: see text] the 2 meV peak is smeared out, whereas the 4 meV peak becomes very weak and broad, but preserves the same quasi-one-dimensional character as that for CeNiSn. These results suggest the strong relation between the antiferromagnetic correlations and the pseudo-gap formation.
已经进行了单晶中子散射实验来研究[化学式：见原文]中的磁激发，其中CeNiSn的赝能隙通过掺杂被抑制。在CeNiSn中，在2毫电子伏特和4毫电子伏特处有两个非弹性激发峰，它们对应于动态反铁磁关联。在[化学式：见原文]中，2毫电子伏特的峰变模糊，而4毫电子伏特的峰变得非常弱且宽，但保留了与CeNiSn相同的准一维特征。这些结果表明反铁磁关联与赝能隙形成之间存在密切关系。
