Lebanon Eran, Coleman P
Center for Materials Theory, Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08854-8019, USA.
Phys Rev Lett. 2005 Jul 22;95(4):046803. doi: 10.1103/PhysRevLett.95.046803.
We study the nonequilibrium noise in mesoscopic diffusive wires hosting magnetic impurities. We find that the shot-noise to current ratio develops a peak at intermediate source-drain biases of the order of the Kondo temperature. The enhanced impurity contribution at intermediate biases is also manifested in the effective distribution. The predicted peak represents an increased inelastic scattering rate at the nonequilibrium Kondo crossover.
我们研究了含有磁性杂质的介观扩散线中的非平衡噪声。我们发现，散粒噪声与电流之比在近藤温度量级的中间源漏偏压处出现一个峰值。中间偏压下杂质贡献的增强也体现在有效分布中。预测的峰值代表了非平衡近藤渡越处非弹性散射率的增加。
