Ultrafast Light-Induced Ferromagnetic State in Transition Metal Dichalcogenides Monolayers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10450567" target="_blank" >RIV/00216208:11310/22:10450567 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=2gknF5Fn5T" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=2gknF5Fn5T</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.2c00443" target="_blank" >10.1021/acs.jpclett.2c00443</a>

Result language
angličtina
Original language name
Ultrafast Light-Induced Ferromagnetic State in Transition Metal Dichalcogenides Monolayers
Original language description
Ultrafast optical control of magnetism had great potential to revolutionizemagnetic storage technology and spintronics, but for now, its potential remains mostlyuntapped in two-dimensional (2D) magnets. Here, using the state-of-the-art real-time time-dependent density functional theory (rt-TDDFT), we demonstrate that an ultrafast laser pulsecan induce a ferromagnetic state in nonmagnetic MoSe2monolayers interfaced with van derWaals (vdW) ferromagnetic MnSe2. Our results show that the transient ferromagnetism inMoSe2derives from photoinduced direct ultrafast interlayer spin transfer from Mn to Mo via avdW-coupled interface, albeit with a delay of approximately a few femtoseconds. This delaywas strongly dependent on laser duration and interlayer coupling, which could be used to tunethe amplitude and rate spin transfer. Furthermore, we have also shown that ferromagneticstates can be photoinduced in other transition metal dichalcogenides (TMDs), such as PtS2and TaSe2monolayers. Overall, ourfindings provide crucial physical insights for exploringlight-induced interlayer spin and charge dynamics in 2D magnetic systems
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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