| Autor: |
Slot, M. R., Kempkes, S. N., Knol, E. J., van Weerdenburg, W. M. J., Broeke, J. J. van den, Wegner, D., Vanmaekelbergh, D., Khajetoorians, A. A., Smith, C. Morais, Swart, I. |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Physical Review X 9, 011009 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevX.9.011009 |
| Popis: |
Artificial electronic lattices, created atom by atom in a scanning tunneling microscope, have emerged as a highly tunable platform to realize and characterize the lowest-energy bands of novel lattice geometries. Here, we show that artificial electronic lattices can be tailored to exhibit higher-energy bands. We study p-like bands in four-fold and three-fold rotationally symmetric lattices. In addition, we show how an anisotropic design can be used to lift the degeneracy between p_x- and p_y-like bands. The experimental measurements are corroborated by muffin-tin and tight-binding calculations. The approach to engineer higher-energy electronic bands in artificial quantum systems introduced here enables the realization of complex band structures from the bottom up. |
| Databáze: |
arXiv |
| Externí odkaz: |
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