Journal
PHYSICAL REVIEW LETTERS
Volume 103, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.116803
Keywords
-
Categories
Funding
- JSPS [20340098, 20654034]
- MEXT [220029004, 20046002]
- Grants-in-Aid for Scientific Research [20654034] Funding Source: KAKEN
Ask authors/readers for more resources
We reveal from numerical study that the optical Hall conductivity sigma(xy)(omega) has a characteristic feature even in the ac (similar to THz) regime in that the Hall plateaus are retained both in the ordinary two-dimensional electron gas and in graphene in the quantum Hall regime, although the plateau height is no longer quantized in ac. In graphene sigma(xy)(omega) reflects the unusual Landau level structure. The effect remains unexpectantly robust against the significant strength of disorder, which we attribute to an effect of localization. We predict the ac quantum Hall measurements are feasible through the Faraday rotation characterized by the fine-structure constant alpha.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available