论文标题
近代自旋松弛的异常缩放
Unusual Scaling of Kondo Spin Relaxation
论文作者
论文摘要
通过使用与非宽松的铜通道一起使用含有稀疏的铁不含的稀疏的铜通道，可以探索Kondo旋转放松率$ {τ_{τ_{Sk}}^{ - 1} $与亲托动量放松率$ {τ_{τ_{Ek}}^{ - 1} $之间的关系。 $ {τ_{sk}}}^{ - 1} $和$ {τ_{ek}}}^{ - 1} $之间的线性关系在不同的温度下建立。但是，在不同的杂质浓度下，尽管$ {τ_{τ_{τ_{ek}}^{ - 1} $的变化，$ {τ_{sk}}^{ - 1} $仍然几乎是恒定的。通过一个因素，可以通过重叠的Kondo筛选kondo筛选云的范围来考虑这种令人惊讶的关系。
The relation between the Kondo spin relaxation rate $ {τ_{sK}}^{-1} $ and the Kondo momentum relaxation rate $ {τ_{eK}}^{-1} $ is explored by using nonlocal spin valves with submicron copper channels that contain dilute iron impurities. A linear relation between $ {τ_{sK}}^{-1} $ and $ {τ_{eK}}^{-1} $ is established under varying temperatures. However, under varying impurity concentrations, ${τ_{sK}}^{-1}$ remains nearly constant despite variation of $ {τ_{eK}}^{-1} $ by a factor of 10. This surprising relation can be understood by considering spin relaxation through overlapping Kondo screening clouds and supports the physical existence of the elusive Kondo clouds.
