Goremychkin EA, Osborn R, Rainford BD, Murani AP
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA.
Phys Rev Lett. 2000 Mar 6;84(10):2211-4. doi: 10.1103/PhysRevLett.84.2211.
We have performed an inelastic neutron scattering study of the low energy spin dynamics of the heavy fermion compound Ce0.8La0.2Al3 as a function of temperature and external pressure up to 5 kbar. At temperatures below 3 K, the magnetic response transforms from a quasielastic form, common to many heavy fermion systems, to a single well-defined inelastic peak, which is extremely sensitive to external pressure. The scaling of the spin dynamics and the thermodynamic properties are in agreement with the predictions of the anisotropic Kondo model.
我们对重费米子化合物Ce0.8La0.2Al3的低能自旋动力学进行了非弹性中子散射研究，该研究考察了温度和高达5千巴的外部压力的函数关系。在低于3K的温度下，磁响应从许多重费米子系统常见的准弹性形式转变为单个明确的非弹性峰，该峰对外部压力极为敏感。自旋动力学和热力学性质的标度与各向异性近藤模型的预测相符。
