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

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

dc.contributor.author	Mertens, Fabian
dc.contributor.author	Mönkebüscher, David
dc.contributor.author	Parlak, Umut
dc.contributor.author	Boix Constant, Carla
dc.contributor.author	Mañas Valero, Samuel
dc.contributor.author	Matzer, Margherita
dc.contributor.author	Adhikari, Rajdeep
dc.contributor.author	Bonanni, Alberta
dc.contributor.author	Coronado Miralles, Eugenio
dc.contributor.author	Kalashnikova, Alexandra M.
dc.contributor.author	Bossini, Davide
dc.contributor.author	Cinchetti, Mirko
dc.date.accessioned	2023-02-10T13:59:47Z
dc.date.available	2023-02-10T13:59:47Z
dc.date.issued	2022
dc.identifier.citation	Mertens, Fabian Mönkebüscher, David Parlak, Umut Boix Constant, Carla Mañas Valero, Samuel Matzer, Margherita Adhikari, Rajdeep Bonanni, Alberta Coronado Miralles, Eugenio Kalashnikova, Alexandra M. Bossini, Davide Cinchetti, Mirko 2022 Ultrafast coherent THz lattice dynamics coupled to spins in the van der Waals antiferromagnet FePS3 Advanced Materials 35 6 2208355
dc.identifier.uri	https://hdl.handle.net/10550/85390
dc.description.abstract	Coherent 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.
dc.language.iso	eng
dc.relation.ispartof	Advanced Materials, 2022, vol. 35, num. 6, p. 2208355
dc.subject	Materials
dc.subject	Semiconductors
dc.title	Ultrafast coherent THz lattice dynamics coupled to spins in the van der Waals antiferromagnet FePS3
dc.type	journal article	es_ES
dc.date.updated	2023-02-10T13:59:47Z
dc.identifier.doi	10.1002/adma.202208355
dc.identifier.idgrec	156259
dc.rights.accessRights	open access	es_ES