Quantum spin Hall effect on germanene nanorod embedded in completely hydrogenated germanene
@article{Seixas2014QuantumSH, title={Quantum spin Hall effect on germanene nanorod embedded in completely hydrogenated germanene}, author={Leandro Seixas and Jos{\'e} Eduardo Padilha and Adalberto Fazzio}, journal={Physical Review B}, year={2014}, volume={89}, pages={195403} }
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.
42 Citations
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References
SHOWING 1-10 OF 35 REFERENCES
APPL
- Computer Science
- 2001
A prototype probability package named APPL (A Probability Programming Language) is presented that can be used to manipulate random variables and examples illustrate its use.
ACS Nano 7(5)
- 4414
- 2013
Phys
- Rev. B 88 121401
- 2013
Phys
- Rev. B 89 085429
- 2014
A
- J. R. da Silva and A. Fazzio Phys. Rev. B 88, 201106
- 2013
Phys
- Rev. Lett. 110, 085504
- 2013
Phys
- Rev. Lett., 110, 076801
- 2013
Phys
- Rev. Lett. 111, 136804
- 2013
Surf
- Sci. 608, 297
- 2013
W
- A. Hofer and H.-J. Gao, Nano Lett., 13(2), 685
- 2013