| Autor: |
Kumar, Anshuman, Nemilentsau, Andrei, Fung, Kin Hung, Hanson, George, Fang, Nicholas X., Low, Tony |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 93, 041413(R) (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.93.041413 |
| Popis: |
We study the electromagnetic response and surface electromagnetic modes in a generic gapped Dirac material under pumping with circularly polarized light. The valley imbalance due to pumping leads to a net Berry curvature, giving rise to a finite transverse conductivity. We discuss the appearance of nonreciprocal chiral edge modes, their hybridization and waveguiding in a nanoribbon geometry, and giant polarization rotation in nanoribbon arrays. |
| Databáze: |
arXiv |
| Externí odkaz: |
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