Ultrafast optical induction of magnetic order at a quantum critical point

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dc.contributor.authorFauseweh, Benedikt
dc.contributor.authorZhu, Jian-Xin
dc.date.accessioned2025-09-25T05:46:24Z
dc.date.available2025-09-25T05:46:24Z
dc.date.issued2024-12-06
dc.description.abstractTime-resolved ultrafast spectroscopy has emerged as a promising tool to dynamically induce and manipulate non-trivial electronic states of matter out-of-equilibrium. Here we theoretically investigate light pulse driven dynamics in a Kondo lattice system close to quantum criticality. Based on a time-dependent auxiliary fermion mean-field calculation we show that light can dehybridize the local Kondo screening and induce oscillating magnetic order out of a previously paramagnetic state. Depending on the laser pulse field amplitude and frequency the Kondo singlet can be completely deconfined, inducing a dynamic Lifshitz transition that changes the Fermi surface topology. These phenomena can be identified in harmonic generation and time-resolved angle-resolved photoemission spectroscopy spectra. Our results shed new light on non-equilibrium states in heavy fermion systems.en
dc.identifier.urihttp://hdl.handle.net/2003/43989
dc.language.isoen
dc.relation.ispartofseriesJournal of physics; 37(7)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectNon-equilibrium phase transitionen
dc.subjectLifshitz transitionen
dc.subjectHigh harmonic generationen
dc.subjectHeavy fermion systemsen
dc.subject.ddc530
dc.titleUltrafast optical induction of magnetic order at a quantum critical pointen
dc.typeText
dc.type.publicationtypeArticle
dcterms.accessRightsopen access
eldorado.dnb.deposittrue
eldorado.doi.registerfalse
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationFauseweh, B., & Zhu, J.-X. (2025). Ultrafast optical induction of magnetic order at a quantum critical point. Journal of Physics Condensed Matter, 37(7), Article 075603. https://doi.org/10.1088/1361-648x/ad9659
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1088/1361-648x/ad9659

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