| Autor: |
Gamucci, Andrea, Pellegrini, Vittorio, Singha, Achintya, Pinczuk, Aron, Pfeiffer, Loren N., West, Kenneth W., Rontani, Massimo |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 85, 033307 (2012) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.85.033307 |
| Popis: |
We observe a low-lying sharp spin mode of three interacting electrons in an array of nanofabricated AlGaAs/GaAs quantum dots by means of resonant inelastic light scattering. The finding is enabled by a suppression of the inhomogeneous contribution to the excitation spectra obtained by reducing the number of optically-probed quantum dots. Supported by configuration-interaction calculations we argue that the observed spin mode offers a direct probe of Stoner ferromagnetism in the simplest case of three interacting spin one-half fermions. |
| Databáze: |
arXiv |
| Externí odkaz: |
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