Correlated topological insulators and the fractional magnetoelectric effect
Topological insulators are characterized by the presence of gapless surface modes protected by time-reversal symmetry. In three space dimensions the magnetoelectric response is described in terms of a bulk θ [theta] term for the electromagnetic field. Here we construct theoretical examples of such p...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/65354 https://orcid.org/0000-0003-4203-4148 |