Resonant spin amplification in Faraday geometry
| Autor: | Schering, P., Evers, E., Nedelea, V., Smirnov, D. S., Zhukov, E. A., Yakovlev, D. R., Bayer, M., Uhrig, G. S., Greilich, A. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 103, L201301 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.103.L201301 |
| Popis: | We demonstrate the realization of the resonant spin amplification (RSA) effect in Faraday geometry where a magnetic field is applied parallel to the optically induced spin polarization so that no RSA is expected. However, model considerations predict that it can be realized for a central spin interacting with a fluctuating spin environment. As a demonstrator, we choose an ensemble of singly-charged (In,Ga)As/GaAs quantum dots, where the resident electron spins interact with the surrounding nuclear spins. The observation of RSA in Faraday geometry requires intense pump pulses with a high repetition rate and can be enhanced by means of the spin-inertia effect. Potentially, it provides the most direct and reliable tool to measure the longitudinal $g$ factor of the charge carriers. Comment: 7 pages including 4 figures; 8 pages supplement including 4 figures |
| Databáze: | arXiv |
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