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

谢能; 胡丹青; 陈澍; 杨义峰

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

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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.

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《中国物理快报：英文版》 |2022年第11期|53-56|共4页
作者
谢能; 胡丹青; 陈澍; 杨义峰;
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作者单位

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;

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原文格式 PDF
正文语种 chi
中图分类凝聚态物理学;
关键词
method; Kondo; Heisenberg;

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

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