Angular-momentum-selective nanofocusing with Weyl semimetals
Peluso, M., De Martino, A. 
ORCID: 0000-0002-3656-0419, Egger, R. & Buccheri, F. (2025).
Angular-momentum-selective nanofocusing with Weyl semimetals.
Physical Review Research, 7(4),
article number 043121.
doi: 10.1103/8c99-rvmm
Abstract
We investigate the theory of surface plasmon polaritons on a magnetic Weyl semimetal conical tip. We show that the axion term in the effective electrodynamics modifies the surface plasmon polariton dispersion relation and allows all modes with a given sign of the orbital angular momentum to be focused at the end of the tip. This is in contrast with normal metals, in which only one mode can reach the end. We discuss how this orbital angular momentum nanofocusing expands the potential of technologies that use this degree of freedom.
| Publication Type: | Article |
|---|---|
| Additional Information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| Subjects: | Q Science > QA Mathematics |
| Departments: | School of Science & Technology School of Science & Technology > Department of Mathematics |
| SWORD Depositor: |
Available under License Creative Commons: Attribution International Public License 4.0.
Download (1MB) | Preview
Export
Downloads
Downloads per month over past year
Metadata
MetadataActions (login required)
Admin Login