Ultrafast Light-Induced Ferromagnetic State in Transition Metal Dichalcogenides Monolayers

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrafast Light-Induced Ferromagnetic State in Transition Metal Dichalcogenides Monolayers

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Ultrafast Light-Induced Ferromagnetic State in Transition Metal Dichalcogenides Monolayers

Popis výsledku anglicky

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

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry Letters

ISSN

1948-7185

e-ISSN

1948-7185

Svazek periodika

13

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

2765-2771

Kód UT WoS článku

000783184700015

EID výsledku v databázi Scopus

2-s2.0-85127567340