论文标题
由于铁磁性和旋转冰冻而导致的中子去极化，cepd $ _ {1-x} $ rh $ _x $
Neutron Depolarization due to Ferromagnetism and Spin Freezing in CePd$_{1-x}$Rh$_x$
论文作者
论文摘要
我们报告了抑制远距离铁磁学的抑制和磁性不可逆性的出现和旋转cepd $ _ {1-x} $ rh $ _x $ ail $ x^*\ oft0.6 $中的中子去极化测量值。跟踪中子去极化的温度与现场历史，我们发现在居里温度下方的长距离iSformagnetism的明确签名$ t _ {\ rm c} $ for $ x = 0.4 $，以及在冷冻温度下方的微型铁磁簇的旋转冻结，$ t _ {$ rm f1}在零场冷却/现场加热下，对于$ x> x^*$，在$ t _ {\ rm f2} <t _ {\ rm f1} $和$ t _ {\ rm f1} $之间的中子去极化的重新入进入温度依赖性在微观上是与热激活的size clasters size size clasters size size size callists size size callists size size size callists size size callists size。去极化的演变以及rh含量的函数的重入温度依赖性与$ t _ {\ rm f1} $以下的Kondo群集玻璃的形成是一致的。
We report neutron depolarization measurements of the suppression of long-range ferromagnetism and the emergence of magnetic irreversibilities and spin freezing in CePd$_{1-x}$Rh$_x$ around $x^*\approx0.6$. Tracking the temperature versus field history of the neutron depolarization, we find clear signatures of long-range Ising ferromagnetism below a Curie temperature $T_{\rm C}$ for $x=0.4$ and a spin freezing of tiny ferromagnetic clusters below a freezing temperature $T_{\rm F1}$ for $x>x^*$. Under zero-field-cooling/field-heating and for $x>x^*$ a reentrant temperature dependence of the neutron depolarization between $T_{\rm F2}<T_{\rm F1}$ and $T_{\rm F1}$ is microscopically consistent with a thermally activated growth of the cluster size. The evolution of the depolarization as well as the reentrant temperature dependence as a function of Rh content are consistent with the formation of a Kondo-cluster glass below $T_{\rm F1}$ adjacent to a ferromagnetic quantum phase transition at $x^*$.
