| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Magnetotransport Properties of a Nodal Line Semimetal TiSi |
| Moran Gao1,2, Junbao He3, Wenliang Zhu1,2, Shuai Zhang1, Xinmin Wang1,2, Jing Li1,2, Chaoyang Ma1, Hui Liang1,2, Zhian Ren1,4, Genfu Chen1,2,4** |
1Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049
3College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061
4Collaborative Innovation Center of Quantum Matter, Beijing 100190
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| Cite this article: |
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Moran Gao, Junbao He, Wenliang Zhu et al 2018 Chin. Phys. Lett. 35 117101 |
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Abstract We report the magnetoresistance (MR), de Haas-van Alphen (dHvA) effect and Hall effect measurements on a single crystal of TiSi, which is predicted to be a nodal line semimetal. With application of a magnetic field, a metal-to-insulator-like transition in $\rho(T)$ and a nonsaturating MR are observed at low temperatures. The dHvA oscillations reveal a small Fermi-surface pocket with a nontrivial Berry phase. The analysis of the nonlinear Hall resistivity shows that TiSi is a multiband system with low carrier densities and high mobilities. All these results unambiguously prove the existence of Dirac fermions in TiSi.
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Received: 26 September 2018
Published: 23 October 2018
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| PACS: |
71.55.Ak
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(Metals, semimetals, and alloys)
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71.30.+h
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(Metal-insulator transitions and other electronic transitions)
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75.47.-m
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(Magnetotransport phenomena; materials for magnetotransport)
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81.10.Fq
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(Growth from melts; zone melting and refining)
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| Fund: Supported by the National Key Research Program of China under Grant Nos 2016YFA0401000 and 2016YFA0300604, the National Basic Research Program of China under Grant No 2015CB921303, the Strategic Priority Research Program (B) of Chinese Academy of Sciences under Grant No XDB07020100, and the National Natural Science Foundation of China under Grant No 11874417. |
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| [1] | Weng H M et al 2016 J. Phys.: Condens. Matter 28 303001 | | [2] | Bansil A et al 2016 Rev. Mod. Phys. 88 021004 | | [3] | Chiu C K et al 2016 Rev. Mod. Phys. 88 035005 | | [4] | Wang Z J et al 2012 Phys. Rev. B 85 195320 | | [5] | Neupane M et al 2014 Nat. Commun. 5 | | [6] | Young S M et al 2012 Phys. Rev. Lett. 108 140405 | | [7] | Liang T et al 2015 Nat. Mater. 14 280 | | [8] | Liu Z K et al 2014 Nat. Mater. 13 677 | | [9] | Wang Z J et al 2013 Phys. Rev. B 88 125427 | | [10] | Liu Z K et al 2014 Science 343 864 | | [11] | Chen D et al 2016 Phys. Rev. B 94 174411 | | [12] | Huang X C et al 2015 Phys. Rev. X 5 031023 | | [13] | Xu S Y et al 2015 Science 349 613 | | [14] | Liu Z K et al 2016 Nat. Mater. 15 27 | | [15] | Weng H M, Fang C, Fang Z, Bernevig B A and Dai X 2015 Phys. Rev. X 5 011029 | | [16] | Lv B Q, Weng H M, Fu B B, Wang X P, Miao H, Ma J, Richard P, Huang X C, Zhao L X, Chen G F, Fang Z, Dai X, Qian T and Ding H 2015 Phys. Rev. X 5 031013 | | [17] | Huang S M, Xu S Y, Belopolski I, Lee C C, Chang G Q, Wang B K, Alidoust N, Bian G, Neupane M, Zhang C L, Jia S, Bansil A, Lin H and Hasan M Z 2015 Nat. Commun. 6 | | [18] | Soluyanov A A, Gresch D, Wang Z J, Wu Q S, Troyer M, Dai X and Bernevig B A 2015 Nature 527 495 | | [19] | Xie L S, Schoop L M, Seibel E M, Gibson Q D, Xie W W and Cava R J 2015 APL Mater. 3 083602 | | [20] | Li R H, Ma H, Cheng X Y, Wang S L, Li D Z, Zhang Z Y, Li Y Y and Chen X Q 2016 Phys. Rev. Lett. 117 096401 | | [21] | Heikkila T T and Volovik G E 2011 JETP Lett. 93 59 | | [22] | Weng H M, Liang Y Y, Xu Q N, Yu R, Fang Z, Dai X and Kawazoe Y 2015 Phys. Rev. B 92 045108 | | [23] | Fang C, Weng H M, Dai X and Fang Z 2016 Chin. Phys. B 25 117106 | | [24] | Burkov A A, Hook M D and Balents L 2011 Phys. Rev. B 84 235126 | | [25] | He J B, Chen D, Zhu W L, Zhang S, Zhao L X, Ren Z A and Chen G F 2017 Phys. Rev. B 95 195165 | | [26] | Zhu W L, He J B, Zhang S, Chen D, Shan L, Ren Z A and Chen G F 2017 arXiv:1707.00942 | | [27] | Bradlyn B, Cano J, Wang Z J, Vergniory M G, Felser C, Cava R J and Bernevig B A 2016 Science 353 aaf5037 | | [28] | Weng H M, Fang C, Fang Z and Dai X 2016 Phys. Rev. B 94 165201 | | [29] | Zhu Z M, Winkler G W, Wu Q S, Li J and Soluyanov A A 2016 Phys. Rev. X 6 031003 | | [30] | Huh Y, Moon E G and Kim Y B 2016 Phys. Rev. B 93 035138 | | [31] | Bian G, Chang T R, Sankar R, Xu S Y, Zheng H, Neupert T, Chiu C K, Huang S M, Chang G Q, Belopolski I, Sanchez D S, Neupane M, Alidoust N, Liu C, Wang B K, Lee C C, Jeng H T, Zhang C L, Yuan Z J, Jia S, Bansil A, Chou F C, Lin H and Hasan M Z 2016 Nat. Commun. 7 10556 | | [32] | Mun E, Ko H, Miller G J, Samolyuk G D, Bud'ko S L and Canfield P C 2012 Phys. Rev. B 85 035135 | | [33] | Neupane M, Belopolski I, Hosen M M, Sanchez D S, Sankar R, Szlawska M, Xu S Y, Dimitri K, Dhakal N, Maldonado P, Oppeneer P M, Kaczorowski D, Chou F C, Hasan M Z and Durakiewicz T 2016 Phys. Rev. B 93 201104 | | [34] | Li J X, Ma H, Xie Q, Feng S B, Ullah S, Li R H, Dong J H, Li D Z, Li Y Y and Chen X Q 2018 Sci. Chin. Mater. 61 23 | | [35] | Agarwal S, Cotts E J, Zarembo S, Kematick R and Myers C 2001 J. Alloys Compd. 314 99 | | [36] | Ali M N, Xiong J, Flynn S, Tao J, Gibson Q D, Schoop L M, Liang T, Haldolaarachchige N, Hirschberger M, Ong N P and Cava R J 2014 Nature 514 | | [37] | Wang X F, Pan X C, Gao M, Yu J H, Jiang J, Zhang J R, Zuo H K, Zhang M H, Wei Z X, Niu W, Xia Z C, Wan X G, Chen Y L, Song F Q, Xu Y B, Wang B G, Wang G H and Zhang R 2016 Adv. Electron. Mater. 2 1600228 | | [38] | Shoenberg D 1984 Magnetic Oscillations in Metals (Cambridge: Cambridge University) | | [39] | Murakawa H, Bahramy M S, Tokunaga M, Kohama Y, Bell C, Kaneko Y, Nagaosa N, Hwang H Y and Tokura Y 2013 Science 342 1490 | | [40] | Mikitik G P and Sharlai Y V 1999 Phys. Rev. Lett. 82 2147 | | [41] | He J B, Fu Y, Zhao L X, Liang H, Chen D, Leng Y M, Wang X M, Li J, Zhang S, Xue M Q, Li C H, Zhang P, Ren Z A and Chen G F 2017 Phys. Rev. B 95 045128 | | [42] | Ashcraft N W and Mermin N D 1976 Solid Sate Physics (New York: Holt, Rinehart and Winston) | | [43] | Hurd C M 1972 The Hall Effect in Metals and Alloys (Cambridge: Cambridge University) |
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