Evolution of Topological End States in the One-Dimensional Kondo–Heisenberg Model with Site Modulation  

作　　者：Neng Xie Danqing Hu Shu Chen Yi-feng Yang 谢能;胡丹青;陈澍;杨义峰(Beijing National Laboratory for Condensed Matter Physics,and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China)

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China [3]Songshan Lake Materials Laboratory,Dongguan 523808,China

出　　处：《Chinese Physics Letters》2022年第11期53-56,共4页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 12174429 and 11974397);the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB33010100)。

摘　　要：We investigate interplay of topological and Kondo effects in a one-dimensional Kondo-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_(K)^(C).We construct a phase diagram characterizing the transition of the end states.

关 键 词：method KONDO HEISENBERG 

分 类 号：O469[理学—凝聚态物理]