Aharanov-Bohm excitons at elevated temperatures in type-II ZnTe/ZnSe quantum dots
arXiv:0710.4308 · doi:10.1103/PhysRevLett.100.136405
Abstract
Optical emission from type-II ZnTe/ZnSe quantum dots demonstrates large and persistent oscillations in both the peak energy and intensity indicating the formation of coherently rotating states. Furthermore, the Aharanov-Bohm (AB) effect is shown to be remarkably robust and persists until 180K. This is at least one order of magnitude greater than the typical temperatures in lithographically defined rings. To our knowledge this is the highest temperature at which the AB effect has been observed in semiconductor structures.
References in corpus (7)
- Quantum Cryptography
- Spectroscopy of nanoscopic semiconductor rings
- Energy spectra of quantum rings
- Polarized excitons in nanorings and the `optical' Aharonov-Bohm effect
- Aharonov-Bohm signature for neutral excitons in type-II quantum dot ensembles
- Optical Aharonov-Bohm effect in stacked type-II quantum dots
- Optical exciton Aharonov-Bohm effect, persistent current, and magnetization in semiconductor nanorings of type I and II
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