%A Neng Xie, Danqing Hu, Shu Chen, and Yi-feng Yang
%T Evolution of Topological End States in the One-Dimensional Kondoâ€“Heisenberg Model with Site Modulation
%0 Journal Article
%D 2022
%J Chin. Phys. Lett.
%R 10.1088/0256-307X/39/11/117101
%P 117101%V 39
%N 11
%U {https://cpl.iphy.ac.cn/CN/abstract/article_116213.shtml}
%8 2022-10-09
%X We investigate interplay of topological and Kondo effects in a one-dimensional Kondoâ€“Heisenberg model with nontrivial conduction band using the density matrix renormalization group method. By analyzing the density profile, the local hybridization, and the spin/charge gap, we find that the Kondo effect can be destructed at edges of the chain by the topological end state below a finite critical Kondo coupling $J_{\scriptscriptstyle{\rm K}}^{\rm c}$. We construct a phase diagram characterizing the transition of the end states.