Nearly massless Dirac fermions and strong Zeeman splitting in the nodal-line semimetal ZrSiS probed by de Haas–van Alphen quantum oscillations
TLDR
In the Dirac nodal-line semimetal ZrSiS, the extremely high Dirac fermion density gives rise to very strong de Haas-van Alphen quantum oscillations even at low magnetic fields as discussed by the authors.Abstract:
Topological semimetals harbor relativistic fermions featuring light effective mass, high mobility, and a nontrivial Berry phase. Quantum oscillations are an effective means to probe the properties of relativistic fermions. In the Dirac nodal-line semimetal ZrSiS, the extremely high Dirac fermion density gives rise to very strong de Haas--van Alphen quantum oscillations even at low magnetic fields, by which nearly massless Dirac fermions with surprisingly strong Zeeman effect are revealed.read more
Citations
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Evidence of Topological Nodal-Line Fermions in ZrSiSe and ZrSiTe.
Jin Hu,Zhijie Tang,Jinyu Liu,Xue Liu,Yanglin Zhu,David Graf,Kevin Myhro,Son Tran,Chun Ning Lau,Jiang Wei,Zhiqiang Mao +10 more
TL;DR: ZrSiSe and ZrSiTe single crystals can be thinned down to 2D atomic thin layers through microexfoliation, which offers the first platform to explore exotic properties of topological nodal-line fermions in low dimensions.
Journal ArticleDOI
Weyl-like points from band inversions of spin-polarised surface states in NbGeSb
Igor Marković,Igor Marković,Chris Hooley,O. J. Clark,Federico Mazzola,Matthew D. Watson,J. M. Riley,K Volckaert,Kaycee Underwood,Matthew S. Dyer,Philip A. E. Murgatroyd,Keith Murphy,P. Le Fèvre,François Bertran,Jun Fujii,Ivana Vobornik,Shilong Wu,Taichi Okuda,Jonathan Alaria,Philip D. C. King +19 more
TL;DR: In this paper, a band inversion between manifolds of surface states is proposed to stabilize topological and symmetry-protected states in solids, by aliovalent substitution of Nb for Zr and Sb for S in the ZrSiS family of nonsymmorphic semimetals.
Journal ArticleDOI
Experimental perspective on three-dimensional topological semimetals
Journal ArticleDOI
Unconventional mass enhancement around the Dirac nodal loop in ZrSiS
Sergio Pezzini,M. R. van Delft,Leslie M. Schoop,Bettina V. Lotsch,Antony Carrington,Mikhail I. Katsnelson,Nigel E. Hussey,Steffen Wiedmann +7 more
TL;DR: In this article, a quantum oscillation study of the nodal-loop semimetal ZrSiS in high magnetic fields was performed, and it was shown that magnetic breakdown occurs across gaps in the loop structure with orbits that enclose different windings around its vertices, each winding accompanied by an additional π Berry phase.
Journal ArticleDOI
Transport of Topological Semimetals
TL;DR: The 3D topological semimetals represent a new class of topological matters and have been at the frontiers of condensed matter physics, and many of them have been studied in the literature as discussed by the authors.
References
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Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
Su-Yang Xu,Ilya Belopolski,Nasser Alidoust,Madhab Neupane,Chenglong Zhang,Raman Sankar,Shin-Ming Huang,Chi-Cheng Lee,Guoqing Chang,Baokai Wang,Guang Bian,Hao Zheng,Daniel S. Sanchez,Fangcheng Chou,Hsin Lin,Shuang Jia,M. Zahid Hasan +16 more
TL;DR: The experimental discovery of a Weyl semimetal, tantalum arsenide (TaAs), using photoemission spectroscopy, which finds that Fermi arcs terminate on the Weyl fermion nodes, consistent with their topological character.
Book
Magnetic Oscillations in Metals
TL;DR: In this paper, the de Haas-van Alphen effect and other oscillatory effects are discussed, including phase and spin-splitting effects, and the Dingle temperature is discussed.
Journal ArticleDOI
Dirac semimetal and topological phase transitions in A 3 Bi ( A = Na , K, Rb)
TL;DR: In this article, it was shown that crystalline A(3)Bi (A = Na, K, Rb) are Dirac semimetals with bulk 3D Dirac points protected by crystal symmetry, and they possess nontrivial Fermi arcs on the surfaces and can be driven into various topologically distinct phases by explicit breaking of symmetries.
Journal ArticleDOI
Three-dimensional Dirac semimetal and quantum transport in Cd 3 As 2
TL;DR: In this paper, the authors recover the silent topological nature of Cd3As2, a well known semiconductor with high carrier mobility, and find that it is a symmetry-protected topological semimetal with a single pair of three-dimensional (3D) Dirac points in the bulk and nontrivial Fermi arcs on the surfaces.
Journal ArticleDOI
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class
Shin-Ming Huang,Su-Yang Xu,Ilya Belopolski,Chi-Cheng Lee,Guoqing Chang,Baokai Wang,Baokai Wang,Nasser Alidoust,Guang Bian,Madhab Neupane,Madhab Neupane,Chenglong Zhang,Shuang Jia,Arun Bansil,Hsin Lin,M. Zahid Hasan +15 more
TL;DR: The results show that in the TaAs-type materials the WeylSemimetal state does not depend on fine-tuning of chemical composition or magnetic order, which opens the door for the experimental realization of Weyl semimetals and Fermi arc surface states in real materials.
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