| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Evolution of Topological End States in the One-Dimensional Kondo–Heisenberg Model with Site Modulation |
| Neng Xie1, Danqing Hu1, Shu Chen1,2,3, and Yi-feng Yang1,2,3* |
1Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
3Songshan Lake Materials Laboratory, Dongguan 523808, China
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| Cite this article: |
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Neng Xie, Danqing Hu, Shu Chen et al 2022 Chin. Phys. Lett. 39 117101 |
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Abstract 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 $J_{\scriptscriptstyle{\rm K}}^{\rm c}$. We construct a phase diagram characterizing the transition of the end states.
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Received: 24 July 2022
Published: 24 October 2022
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| PACS: |
71.27.+a
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(Strongly correlated electron systems; heavy fermions)
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75.30.Mb
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(Valence fluctuation, Kondo lattice, and heavy-fermion phenomena)
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| [1] | Hasan M Z and Kane C L 2010 Rev. Mod. Phys. 82 3045 |
| [2] | Qi X L and Zhang S C 2011 Rev. Mod. Phys. 83 1057 |
| [3] | Kane C L and Mele E J 2005 Phys. Rev. Lett. 95 226801 |
| [4] | Bernevig B A, Hughes T L, and Zhang S C 2005 Phys. Rev. Lett. 95 066601 |
| [5] | Lang L J, Cai X M, and Chen S 2012 Phys. Rev. Lett. 108 220401 |
| [6] | Kraus Y E, Lahini Y, Ringel Z, Verbin M, and Zilberberg O 2012 Phys. Rev. Lett. 109 106402 |
| [7] | Hofstadter D R 1976 Phys. Rev. B 14 2239 |
| [8] | Dzero M, Sun K, Galitski V, and Coleman P 2010 Phys. Rev. Lett. 104 106408 |
| [9] | Lu F, Zhao J Z, Weng H M, Fang Z, and Dai X 2013 Phys. Rev. Lett. 110 096401 |
| [10] | Wolgast S, Kurdak C, Sun K, Allen J W, Kim D J, and Fisk Z 2013 Phys. Rev. B 88 180405 |
| [11] | Kim D J, Thomas S, Grant T, Botimer J, Fisk Z, and Xia J 2013 Sci. Rep. 3 3150 |
| [12] | Zhang J, Zhang S, Chen Z et al. 2018 Chin. Phys. B 27 097103 |
| [13] | Alexandrov V, Coleman P, and Erten O 2015 Phys. Rev. Lett. 114 177202 |
| [14] | Erten O, Ghaemi P, and Coleman P 2016 Phys. Rev. Lett. 116 046403 |
| [15] | Feng X Y, Dai J H, Chung C H, and Si Q 2013 Phys. Rev. Lett. 111 016402 |
| [16] | Zhou Y, Kim D J, Rosa P F S et al. 2015 Phys. Rev. B 92 241118(R) |
| [17] | White S R 1992 Phys. Rev. Lett. 69 2863 |
| [18] | White S R 1993 Phys. Rev. B 48 10345 |
| [19] | Schollwöck U 2005 Rev. Mod. Phys. 77 259 |
| [20] | Xie N and Yang Y F 2015 Phys. Rev. B 91 195116 |
| [21] | Xie N, Hu D, and Yang Y F 2017 Sci. Rep. 7 11924 |
| [22] | Alvarez G 2009 Comput. Phys. Commun. 180 1572 |
| [23] | Rice M J and Mele E J 1982 Phys. Rev. Lett. 49 1455 |
| [24] | Su W P, Schrieffer J R, and Heeger A J 1979 Phys. Rev. Lett. 42 1698 |
| [25] | Xiao D, Chang M C, and Niu Q 2010 Rev. Mod. Phys. 82 1959 |
| [26] | Fukui T, Hatsugai Y, and Suzuki H 2005 J. Phys. Soc. Jpn. 74 1674 |
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