Range and Spatial Variation of the Kondo Spin-Compensated State

Abstract

The polarization of the electron cloud around a magnetic impurity in a dilute magnetic alloy has been considered in the low-temperature region where perturbation theory is not applicable. It is found that the electron-spin-impurity-spin correlation function shows an exponentially damped negative oscillation instead of Ruderman-Kittel-Kasuya-Yosida-type oscillation. The range of the Kondo spin-compensated state is calculated to be $\frac{D}{\left({\epsilon }_0{k}_F\right)}$, where $2D$ is the conduction bandwidth, $k_F$ is the Fermi momentum, and ${\epsilon }_0$ is the energy corresponding to the Kondo temperature $T_K$.