Hole spin coherence in InAs/InAlGaAs self‐assembled quantum dots emitting at telecom wavelengths

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dc.contributor.authorEvers, Eiko
dc.contributor.authorKopteva, Nataliia E.
dc.contributor.authorNedelea, Vitalie
dc.contributor.authorKors, Andrei
dc.contributor.authorKaur, Ranbir
dc.contributor.authorReithmaier, Johann Peter
dc.contributor.authorBenyoucef, Mohamed
dc.contributor.authorBayer, Manfred
dc.contributor.authorGreilich, Alex
dc.date.accessioned2026-07-23T14:01:49Z
dc.date.issued2024-09-02
dc.description.abstractMeasurements of the longitudinal and transverse spin relaxation times of holes in an ensemble of vertically tunnel-coupled self-assembled InAs/In0.53 Al0.24 Ga0.23 As quantum dots (QDs), emitting in the telecom spectral range, are reported. The spin coherence is determined using the spin mode-locking method in the inhomogeneous ensemble of QDs. Modeling the signal allows us to extract the hole spin coherence time to be in the range of 𝑇2 =0.02 −0.4  μs. The longitudinal spin relaxation time 𝑇1 =0.5  μs is measured using the spin inertia method. The parameters investigated allow us to suggest that the main relaxation mechanism at low magnetic fields is related to the electron–hole spin exchange.en
dc.identifier.doi10.48550/arxiv.2311.03047
dc.identifier.urihttp://hdl.handle.net/2003/45041
dc.language.isoen
dc.publisherarXiv
dc.relation.ispartofseriesPhysica status solidi; 262(1)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectQuantum dotsen
dc.subjectSpin coherenceen
dc.subjectSpin relaxationen
dc.subjectTelecomen
dc.subject.ddc530
dc.titleHole spin coherence in InAs/InAlGaAs self‐assembled quantum dots emitting at telecom wavelengthsen
dc.typeText
dc.type.publicationtypeResearchArticle
dcterms.accessRightsopen access
eldorado.dnb.deposittrue
eldorado.doi.registerfalse
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationEvers, E., Kopteva, N. E., Nedelea, V., Kors, A., Kaur, R., Reithmaier, J. P., Benyoucef, M., Bayer, M., & Greilich, A. (2025). Hole spin coherence in InAs/InAlGaAs self‐assembled quantum dots emitting at telecom wavelengths. Physica Status Solidi B, 262(1), Article 2400174. https://doi.org/10.1002/pssb.202400174
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/pssb.202400174

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Experimentelle Physik II