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Coexistence of Dirac and Weyl points in non-centrosymmetric semimetal NbIrTe4 |
| Qingxin Liu(刘清馨)1,2,†, Yang Fu(付阳)1,2,†, Pengfei Ding(丁鹏飞)1,2, Huan Ma(马欢)1,2, Pengjie Guo(郭朋杰)1,2,‡, Hechang Lei(雷和畅)1,2,§, and Shancai Wang(王善才)1,2,¶ |
1 Department of Physics, Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education), Renmin University of China, Beijing 100872, China;
2 Beijing Key Laboratory of Opto-Electronic Functional Materials & Micro-Nano Devices, Renmin University of China, Beijing 100872, China |
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Abstract Using angle-resolved photoemission spectroscopy and density functional theory calculations methods, we investigate the electronic structures and topological properties of ternary tellurides NbIrTe4, a candidate for type-II Weyl semimetal. We demonstrate the presence of several Fermi arcs connecting their corresponding Weyl points on both termination surfaces of the topological material. Our analysis reveals the existence of Dirac points, in addition to Weyl points, giving both theoretical and experimental evidences of the coexistence of Dirac and Weyl points in a single material. These findings not only confirm NbIrTe4 as a unique topological semimetal but also open avenues for exploring novel electronic devices based on its coexisting Dirac and Weyl fermions.
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Received: 25 January 2024
Revised: 18 February 2024
Accepted manuscript online: 19 February 2024
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PACS:
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71.18.+y
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(Fermi surface: calculations and measurements; effective mass, g factor)
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71.20.-b
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(Electron density of states and band structure of crystalline solids)
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79.60.-i
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(Photoemission and photoelectron spectra)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 12274455, 12274459, and 12204533), the National Key R&D Program of China (Grant No. 2022YFA1403800), and the Beijing Natural Science Foundation (Grant No. Z200005). |
Corresponding Authors:
Pengjie Guo, Hechang Lei, Shancai Wang
E-mail: guopengjie@ruc.edu.cn;hlei@ruc.edu.cn;scw@ruc.edu.cn
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Cite this article:
Qingxin Liu(刘清馨), Yang Fu(付阳), Pengfei Ding(丁鹏飞), Huan Ma(马欢), Pengjie Guo(郭朋杰), Hechang Lei(雷和畅), and Shancai Wang(王善才) Coexistence of Dirac and Weyl points in non-centrosymmetric semimetal NbIrTe4 2024 Chin. Phys. B 33 047104
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[1] Nielsen H B and Ninomiya M 1983 Phys. Rev. B 130 389
[2] Shekhar C, Nayak A K, Sun Y, Schmidt M, Nicklas M, Leermakers I, Zeitler U, Skourski Y, Wosnitza J, Liu Z, et al. 2015 Nat. Phys. 11 645
[3] Huang X, Zhao L, Long Y, Wang P, Chen D, Yang Z, Liang H, Xue M, Weng H, Fang Z, et al. 2015 Phys. Rev. X 5 031023
[4] Gorbar E, Miransky V and Shovkovy I 2014 Phys. Rev. B 89 085126
[5] Armitage N, Mele E and Vishwanath A 2018 Rev. Mod. Phys. 90 015001
[6] Hasan M Z, Xu S Y, Belopolski I and Huang S M 2017 Annu. Rev. Condens. Matter Phys. 8 289
[7] Vafek O and Vishwanath A 2014 Annu. Rev. Condens. Matter Phys. 5 83
[8] Young S M, Zaheer S, Teo J C, Kane C L, Mele E J and Rappe A M 2012 Phys. Rev. Lett. 108 140405
[9] Wan X, Turner A M, Vishwanath A and Savrasov S Y 2011 Phys. Rev. B 83 205101
[10] Burkov A and Balents L 2011 Phys. Rev. Lett. 107 127205
[11] Witczak-Krempa W and Kim Y B 2012 Phys. Rev. B 85 045124
[12] Soluyanov A A, Gresch D, Wang Z, Wu Q, Troyer M, Dai X and Bernevig B A 2015 Nature 527 495
[13] Sun Y, Wu S C, Ali M N, Felser C and Yan B 2015 Phys. Rev. B 92 161107
[14] Wang Z, Gresch D, Soluyanov A A, Xie W, Kushwaha S, Dai X, Troyer M, Cava R J and Bernevig B A 2016 Phys. Rev. Lett. 117 056805
[15] Autes G, Gresch D, Troyer M, Soluyanov A A and Yazyev O V 2016 Phys. Rev. Lett. 117 066402
[16] Koepernik K, Kasinathan D, Efremov D, Khim S, Borisenko S, Büchner B and van den Brink J 2016 Phys. Rev. B 93 201101
[17] Li L, Xie H H, Zhao J S, Liu X X, Deng J B, Hu X R and Tao X M 2017 Phys. Rev. B 96 024106
[18] Liu J, Wang H, Fang C, Fu L and Qian X 2017 Nano Lett. 17 467
[19] Lau A, Koepernik K, van den Brink J and Ortix C 2017 Phys. Rev. Lett. 119 076801
[20] Gao H, Kim Y, Venderbos J W, Kane C, Mele E, Rappe A M and Ren W 2018 Phys. Rev. Lett. 121 106404
[21] Meng L, Wu J, Li Y and Zhong J 2019 J. Mater. Chem. C 7 12151
[22] Wang Z, Huang C Y, Hsu C H, Namiki H, Chang T R, Chuang F C, Lin H, Sasagawa T, Madhavan V and Okada Y 2022 Phys. Rev. B 105 075110
[23] Huang X W, Liu X X, Yu P, Li P L, Cui J, Yi J, Deng J B, Fan J, Ji Z Q, Qu F M, et al. 2019 Chin. Phys. Lett. 36 077101
[24] Ekahana S A, Li Y W, Sun Y, Namiki H, Yang H F, Jiang J, Yang L X, Shi W J, Zhang C F, Pei D, Chen C, Sasagawa T, Felser C, Yan B H, Liu Z K and Chen Y L 2020 Phys. Rev. B 102 085126
[25] Blöchl P E 1994 Phys. Rev. B 50 17953
[26] Kresse G and Joubert D 1999 Phys. Rev. B 59 1758
[27] Kresse G and Hafner J 1993 Phys. Rev. B 47 558
[28] Kresse G and Furthmüller J 1996 Comp. Mater. Sci. 6 15
[29] Kresse G and Furthmüller J 1996 Phys. Rev. B 54 11169
[30] Perdew J P, Burke K and Ernzerhof M 1996 Phys. Rev. Lett. 77 3865
[31] Souza I, Marzari N and Vanderbilt D 2001 Phys. Rev. B 65 035109
[32] Marzari N and Vanderbilt D 1997 Phys. Rev. B 56 12847
[33] Wu Q, Zhang S, Song H F, Troyer M and Soluyanov A A 2018 Computer Physics Communications 224 405
[34] Potter A C, Kimchi I and Vishwanath A 2014 Nat. Commun. 5 5161
[35] Bulmash D and Qi X L 2016 Phys. Rev. B 93 081103
[36] Moll P J, Nair N L, Helm T, Potter A C, Kimchi I, Vishwanath A and Analytis J G 2016 Nature 535 266 |
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