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SPECIAL TOPIC — Celebrating the 100th Anniversary of Physics Discipline of Northwest University
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| SPECIAL TOPIC—Celebrating the 100th Anniversary of Physics Discipline of Northwest University |
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Straight and twisted Weyl nodal line phonons in Ho2CF2 material |
| Xin-Yue Kang(康鑫越)1,2, Jin-Yang Li(李金洋)1,2, and Si Li(李思)1,2,† |
1 School of Physics, Northwest University, Xi'an 710127, China;
2 Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127, China |
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Abstract Based on first-principles calculations, symmetry analysis and model construction, we predict that Ho2CF2 hosts both straight and twisted Weyl nodal lines in its bulk phonon spectrum. We identify that the top two phonon bands entangle with each other, forming two straight Weyl nodal lines on the K-H and K'-H' paths at the Brillouin zone (BZ) boundary, and six twisted Weyl nodal lines within the BZ. All the Weyl nodal lines along the kz direction and across the entire BZ. The symmetry analysis indicates that these Weyl nodal lines are protected by the PT symmetry and crystal symmetry. The Berry phase and drumhead-like nontrivial surface states are calculated. We also construct a tight-binding model to describe these nodal lines. Our work provides an excellent material platform for exploring the fascinating physics associated with straight and twisted Weyl nodal line phonons.
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Received: 12 June 2023
Revised: 17 July 2023
Accepted manuscript online: 27 July 2023
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PACS:
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63.20.D-
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(Phonon states and bands, normal modes, and phonon dispersion)
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03.65.Vf
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(Phases: geometric; dynamic or topological)
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03.75.Lm
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(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
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73.20.-r
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(Electron states at surfaces and interfaces)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 12204378). |
Corresponding Authors:
Si Li
E-mail: sili@nwu.edu.cn
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Cite this article:
Xin-Yue Kang(康鑫越), Jin-Yang Li(李金洋), and Si Li(李思) Straight and twisted Weyl nodal line phonons in Ho2CF2 material 2023 Chin. Phys. B 32 116301
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[1] Elliott S R and Franz M 2021 Nat. Commun. 12 1204
[40] Xu Y F, Vergniory M G, Ma D S, Maṇes J L, Song Z D, Bernevig B A, Regnault N and Elcoro L 2017 Phys. Rev. Lett. 119 156401
[55] Bi R, Yan Z B, Lu L and Wang Z 2017 Phys. Rev. B 96 201305
[56] Lee C H, Sutrisno A, Hofmann T, Helbig T, Liu Y H, Ang Y S, Ang L K, Zhang X, Greiter M and Thomale R 2020 Nat. Commun. 11 4385
[57] Li J X, Xie Q, Liu J X, Li R H, Liu M, Wang L, Li D Z, Li Y Y and Chen X Q 2020 Phys. Rev. B 101 024301
[58] Liu G, Jin Y J, Chen Z J and Xu H 2021 Phys. Rev. B 104 024304
[59] Wang D Y, Yang B, Zhang R Y, Chen W J, Zhang Z Q, Zhang S and Chan C T 2022 Phys. Rev. Lett. 129 043602
[60] Zhang T T, Yilmaz T, Vescovo E, Li H X, Moore R G, Lee H N, Miao H, Murakami S and McGuire M A 2022 Npj Comput. Mater. 8 155
[61] Cockcroft J K, Kremer R K, Raju N P, Simon A, et al. 1992 J. Alloys Compd.183 241
[62] Kresse G and Hafner J 1994 Phys. Rev. B 49 14251
[63] Kresse G and Furthmüller J J 1996 Phys. Rev. B 54 11169
[64] Blöchl P E 1994 Phys. Rev. B 50 17953
[65] Perdew J P, Burke K and Ernzerhof M 1996 Phys. Rev. Lett. 77 3865
[66] Togo A and Tanaka I 2015 Scr. Mater. 108 1
[67] Zhang Z Y, Yu Z M, Liu G B and Yao Y G 2022 arXiv:2201.11350
[68] Sancho M L, Sancho J L and Rubio J 1984J. Phys. F:Met. Phys.14 1205
[69] Sancho M Lopez, Sancho J L, Sancho J L and Rubio J 1985 J. Phys. F:Met. Phys.15 851
[70] Wu Q S, Zhang S N, Song H F, Troyer M and Soluyanov A A 2018 Comput. Phys. Commun.224 405
[71] Zhao Y X, Schnyder A P and Wang Z D 2016 Phys. Rev. Lett. 116 156402
[72] Zhang Z Y, Yu Z M, Liu G B and Yao Y G 2022 Comput. Phys. Commun. 270 108153
[73] Delaire O, Al-Qasir I I, May A F, Li C W, Sales B C, Niedziela J L, Ma J, Matsuda M, Abernathy D L and Berlijn T 2015 Phys. Rev. B 91 094307
[74] Mohr M, Maultzsch J, Dobardžić E, Reich S, Milošević I, Damnjanović M, Bosak A, Krisch M and Thomsen C 2007 Phys. Rev. B 76 035439
[75] Zhu X T, Cao Y W, Zhang S Y, Jia X, Guo Q L, Yang F, Zhu L F, Zhang J D, Plummer E W and Guo J D 2015 Rev. Sci. Instrum. 86 083902
[76] Harten U and Toennies J P 1987 Europhys. Lett. 4 833
[77] Wu L, Salehi M, Koirala N, Moon J, Oh S and Armitage N P 2016 Science 354 1124
[78] Wu L, Tse W K, Brahlek M, Morris C M, Aguilar R Valdés, Koirala N, Oh S and Armitage N P 2015 Phys. Rev. Lett. 115 217602 |
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