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arXiv · 2210.13090

Evolution of topological end states in the one-dimensional Kondo-Heisenberg model with site modulation

Neng Xie·Danqing Hu·Shu Chen·Yi-feng Yang
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Abstract

We investigate the interplay of the 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 the 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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Neng Xie, Danqing Hu, Shu Chen, Yi-feng Yang. 2022-10-24. Evolution of topological end states in the one-dimensional Kondo-Heisenberg model with site modulation. https://doi.org/10.1088/0256-307x%2F39%2F11%2F117101

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