| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tartakovskii, Alexander I.
University of Sheffield
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Resonant band hybridization in alloyed transition metal dichalcogenide heterobilayerscitations
- 2024Spin-order-dependent magneto-elastic interactions in two dimensional antiferromagnetic MnPSe3 observed through Raman spectroscopycitations
- 2024Resonant Band Hybridization in Alloyed Transition Metal Dichalcogenide Heterobilayers.
- 2023Understanding the impact of heavy ions and tailoring the optical properties of large-area monolayer WS 2 using focused ion beamcitations
- 2023Understanding the impact of heavy ions and tailoring the optical properties of large-area monolayer WS2 using focused ion beamcitations
- 2021Strong exciton-photon coupling in large area MoSe2 and WSe2 heterostructures fabricated from two-dimensional materials grown by chemical vapor depositioncitations
- 2020Emergence of Highly Linearly Polarized Interlayer Exciton Emission in MoSe2/WSe2 Heterobilayers with Transfer-Induced Layer Corrugationcitations
- 2020Emergence of Highly Linearly Polarized Interlayer Exciton Emission in MoSe 2 /WSe 2 Heterobilayers with Transfer-Induced Layer Corrugationcitations
- 2008Nuclear spin bi-stability in semiconductor quantum dots
Places of action
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booksection
Nuclear spin bi-stability in semiconductor quantum dots
Abstract
The confinement of electrons on the nano-scale and the control of their spin is leading to both new physics and to novel devices with functionality at the quantum level. In III-V semiconductors where manipulation of a single electron spin has been possible in nano-structures, new challenges and opportunities arise due to the hyperfine interaction with the spin reservoir of lattice nuclei. In this work we show that by illuminating an InGaAs/GaAs self-assembled quantum dot with circularly polarized light, the nuclei of the tens of thousands of atoms constituting an InGaAs island can be driven into a bistable regime, in which either a thresholdlike enhancement or reduction of the local nuclear field by up to 3 Tesla can be generated by varying the intensity of light. We show that such a nuclear spin "switch" can be controlled by both external magnetic and electric fields. The switch is shown to arise from the strong feedback of the nuclear spin polarization on the dynamics of spin transfer from electrons to the nuclei of the dot. A comprehensive theory describing the nuclear bi-stability phenomenon in optically pumped dots is presented.