| Autor: |
Grigoryev, P. S., Yugov, O. A., Eliseev, S. A., Efimov, Yu. P., Lovtcius, V. A., Petrov, V. V., Sapega, V. F., Ignatiev, I. V. |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. B 93, 205425, (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.93.205425 |
| Popis: |
Zeeman splitting of quantum-confined states of excitons in InGaAs quantum wells (QWs) is experimentally found to depend strongly on quantization energy. Moreover, it changes sign when the quantization energy increases with a decrease in the QW width. In the 87-nm QW, the sign change is observed for the excited quantum-confined states, which are above the ground state only by a few meV. A two-step approach for the numerical solution of the two-particle Schroedinger equation, taking into account the Coulomb interaction and valence-band coupling, is used for a theoretical justification of the observed phenomenon. The calculated variation of the g-factor convincingly follows the dependencies obtained in the experiments. |
| Databáze: |
arXiv |
| Externí odkaz: |
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