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dc.contributor.authorZajac, Joanna M.
dc.contributor.authorErlingsson, Sigurdur I.
dc.date.accessioned2016-08-16T08:30:17Z
dc.date.available2016-08-16T08:30:17Z
dc.date.issued2016-07-20
dc.identifier245053172
dc.identifiera05981f2-e45a-4807-b33d-a1954810c866
dc.identifier84980315832
dc.identifier000380100300005
dc.identifier.citationZajac , J M & Erlingsson , S I 2016 , ' Temperature dependency of resonance fluorescence from InAs/GaAs quantum dots : dephasing mechanisms ' , Physical Review. B, Condensed matter and materials physics , vol. 94 , no. 3 , 035432 . https://doi.org/10.1103/PhysRevB.94.035432en
dc.identifier.issn1098-0121
dc.identifier.urihttps://hdl.handle.net/10023/9309
dc.description.abstractWe report a study on temperature-dependent resonant fluorescence from InAs/GaAs quantum dots. We combined spectral and temporal measurements in order to identify sources of dephasing. In the spectral domain, we observed temperature-dependent broadening of the zero-phonon line as 0.3 μeV/K, and a temperature-dependent phonon broadband. Time-resolved autocorrelation measurements revealed temperature-dependent spin pumping times between T1,s = 6 ns (4 K) and 0.5 ns (15 K). These results are compared against theoretical modeling with a master equation for a four-level system coupled to phonon and spin baths. We explained the results by phonon-mediated hole-spin scattering between two excited states, with the piezophonons as a dominant mechanism.
dc.format.extent7
dc.format.extent2269476
dc.language.isoeng
dc.relation.ispartofPhysical Review. B, Condensed matter and materials physicsen
dc.subjectQC Physicsen
dc.subjectCondensed Matter Physicsen
dc.subjectElectronic, Optical and Magnetic Materialsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleTemperature dependency of resonance fluorescence from InAs/GaAs quantum dots : dephasing mechanismsen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.1103/PhysRevB.94.035432
dc.description.statusPeer revieweden
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84980315832&partnerID=8YFLogxKen


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