Abstract
We show that germanene nanoroads embedded in completely hydrogenated germanene (germanane) exhibits a quantum spin Hall effect (QSHE). These nanoroads can be obtained experimentally by local hydrogen dissociation from germanane. Using first-principle calculations we predict that germanene nanoroads with zigzag interfaces show dissipationless conducting channels with in-plane and out-of-plane spin textures.
- Received 5 March 2014
- Revised 24 April 2014
DOI:https://doi.org/10.1103/PhysRevB.89.195403
©2014 American Physical Society
