Zhang, Zeying ; Gao, Qiang ; Liu, Cheng-Cheng ; Zhang, Hongbin ; Yao, Yugui (2018)
Magnetization-direction tunable nodal-line and Weyl phases.
In: Physical Review B, 98 (12)
doi: 10.1103/PhysRevB.98.121103
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We propose a spinless symmetry-based three-band tight-binding model with the coexistence of nodal-line and Weyl points, after considering spin-orbital coupling and different magnetization directions. It is confirmed that the number of Weyl points and nodal lines can be tuned by the magnetization direction. The combination of time-reversal symmetry and mirror reflection symmetry plays a crucial role in protecting the degeneracy of nodal lines. Moreover, we put forward a different class of materials C4CrX3 (X=Ge and Si) which host such a nontrivial semimetallic phase.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Zhang, Zeying ; Gao, Qiang ; Liu, Cheng-Cheng ; Zhang, Hongbin ; Yao, Yugui |
| Art des Eintrags: | Bibliographie |
| Titel: | Magnetization-direction tunable nodal-line and Weyl phases |
| Sprache: | Englisch |
| Publikationsjahr: | 7 September 2018 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 98 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1103/PhysRevB.98.121103 |
| URL / URN: | https://doi.org/10.1103/PhysRevB.98.121103 |
| Kurzbeschreibung (Abstract): | We propose a spinless symmetry-based three-band tight-binding model with the coexistence of nodal-line and Weyl points, after considering spin-orbital coupling and different magnetization directions. It is confirmed that the number of Weyl points and nodal lines can be tuned by the magnetization direction. The combination of time-reversal symmetry and mirror reflection symmetry plays a crucial role in protecting the degeneracy of nodal lines. Moreover, we put forward a different class of materials C4CrX3 (X=Ge and Si) which host such a nontrivial semimetallic phase. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Theorie magnetischer Materialien |
| Hinterlegungsdatum: | 12 Dez 2018 10:19 |
| Letzte Änderung: | 12 Dez 2018 10:19 |
| PPN: | |
| Sponsoren: | The work is supported by the National Key R&D Program of China (Grant No. 2016YFA0300600), The work is supported by the NSF of China (Grants No. 11734003, No. 11574029, and No. 11774028), and also the Basic Research Funds of Beijing Institute of Technology (No. 2017CX01018)., H.Z. acknowledges the financial support of the DFG-SPP 1666 program, and both Z.Z. and Q.G. are supported by the CSC scholarship. |
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