| Autor: |
Guettinger, J., Frey, T., Stampfer, C., Ihn, T., Ensslin, K. |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Lett. 105, 116801 (2010) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.105.116801 |
| Popis: |
We investigate ground and excited state transport through small (d = 70 nm) graphene quantum dots. The successive spin filling of orbital states is detected by measuring the ground state energy as a function of a magnetic field. For a magnetic field in-plane of the quantum dot the Zemann splitting of spin states is measured. The results are compatible with a g-factor of 2 and we detect a spin-filling sequence for a series of states which is reasonable given the strength of exchange interaction effects expected for graphene. |
| Databáze: |
arXiv |
| Externí odkaz: |
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