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: | English |
| Published: |
American Physical Society,
2011-08-25T15:36:22Z.
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| Subjects: | |
| Online Access: | Get fulltext |