Ultrafast coherent THz lattice dynamics coupled to spins in the van der Waals antiferromagnet FePS3

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dc.contributor.authorMertens, Fabian
dc.contributor.authorMönkebüscher, David
dc.contributor.authorParlak, Umut
dc.contributor.authorBoix-Constant, Carla
dc.contributor.authorMañas-Valero, Samuel
dc.contributor.authorMatzer, Margherita
dc.contributor.authorAdhikari, Rajdeep
dc.contributor.authorBonanni, Alberta
dc.contributor.authorCoronado, Eugenio
dc.contributor.authorKalashnikova, Alexandra M.
dc.contributor.authorBossini, Davide
dc.contributor.authorCinchetti, Mirko
dc.date.accessioned2023-10-20T10:26:14Z
dc.date.available2023-10-20T10:26:14Z
dc.date.issued2022-12-21
dc.description.abstractCoherent THz optical lattice and hybridized phonon–magnon modes are triggered by femtosecond laser pulses in the antiferromagnetic van der Waals semiconductor FePS3. The laser-driven lattice and spin dynamics are investigated in a bulk crystal as well as in a 380 nm-thick exfoliated flake as a function of the excitation photon energy, sample temperature and applied magnetic field. The pump-probe magneto-optical measurements reveal that the amplitude of a coherent phonon mode oscillating at 3.2 THz decreases as the sample is heated up to the Néel temperature. This signal eventually vanishes as the phase transition to the paramagnetic phase occurs, thus revealing its connection to the long-range magnetic order. In the presence of an external magnetic field, the optically triggered 3.2 THz phonon hybridizes with a magnon mode, which is utilized to excite the hybridized phonon–magnon mode optically. These findings open a pathway toward the optical control of coherent THz photo–magnonic dynamics in a van der Waals antiferromagnet, which can be scaled down to the 2D limit.en
dc.identifier.urihttp://hdl.handle.net/2003/42165
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-23998
dc.language.isoende
dc.relation.ispartofseriesAdvanced materials;35(6)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de
dc.subject2D materialsen
dc.subjectAntiferromagnetsen
dc.subjectMagnonen
dc.subjectPhononen
dc.subjectSpintronicsen
dc.subjectUltrafast pump-probe spectroscopyen
dc.subjectvan der Waals semiconductorsen
dc.subject.ddc539
dc.titleUltrafast coherent THz lattice dynamics coupled to spins in the van der Waals antiferromagnet FePS3en
dc.typeTextde
dc.type.publicationtypeResearchArticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationMertens, F., Mönkebüscher, D., Parlak, U., Boix-Constant, C., Mañas-Valero, S., Matzer, M., Adhikari, R., Bonanni, A., Coronado, E., Kalashnikova, A. M., Bossini, D., Cinchetti, M., Ultrafast Coherent THz Lattice Dynamics Coupled to Spins in the van der Waals Antiferromagnet FePS3. Adv. Mater. 2023, 35, 2208355. https://doi.org/10.1002/adma.202208355de
eldorado.secondarypublication.primaryidentifierDOI: https://doi.org/10.1002/adma.202208355de

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