Dokument: Dispersive drumhead states in nodal-line semimetal junctions
| Titel: | Dispersive drumhead states in nodal-line semimetal junctions | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=68402 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20250203-100314-7 | |||||||
| Kollektion: | Publikationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Texte » Artikel, Aufsatz | |||||||
| Medientyp: | Text | |||||||
| Autoren: | Buccheri, Francesco [Autor] Egger, Reinhold [Autor] Martino, Alessandro de [Autor] | |||||||
| Dateien: |
| |||||||
| Beschreibung: | We consider a smooth interface between a topological nodal-line semimetal and a topologically trivial insulator (e.g., the vacuum) or another semimetal with a nodal ring of different radius. Using a low-energy effective Hamiltonian including only the two crossing bands, we show that these junctions accommodate a two-dimensional zero-energy level and a set of two-dimensional dispersive bands, corresponding to states localized at the interface. We characterize the spectrum, identifying the parameter ranges in which these states are present, and highlight the role of the nodal radius and the smoothness of the interface. We also suggest material-independent ways to detect and identify these states, using optical conductivity and infrared absorption spectroscopy in magnetic field. | |||||||
| Rechtliche Vermerke: | Originalveröffentlichung:
Buccheri, F., Egger, R., & De Martino, A. (2024). Dispersive drumhead states in nodal-line semimetal junctions. Physical review research, 6(1), Article 013193. https://doi.org/10.1103/physrevresearch.6.013193 | |||||||
| Lizenz: |  Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung 4.0 International Lizenz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät | |||||||
| Dokument erstellt am: | 03.02.2025 | |||||||
| Dateien geändert am: | 03.02.2025 |
