Ultrafast laser-induced spin-lattice dynamics in the van der Waals antiferromagnet CoPS3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU149098" target="_blank" >RIV/00216305:26620/23:PU149098 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/apm/article/11/7/071104/2900821/Ultrafast-laser-induced-spin-lattice-dynamics-in" target="_blank" >https://pubs.aip.org/aip/apm/article/11/7/071104/2900821/Ultrafast-laser-induced-spin-lattice-dynamics-in</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0146128" target="_blank" >10.1063/5.0146128</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrafast laser-induced spin-lattice dynamics in the van der Waals antiferromagnet CoPS3

Popis výsledku v původním jazyce

CoPS3 stands out in the family of the van der Waals antiferromagnets XPS3 (X = Mn, Ni, Fe, and Co) due to the unquenched orbital momentum of the magnetic Co2+ ions, which is known to facilitate the coupling of spins to both electromagnetic waves and lattice vibrations. Here, using a time-resolved magneto-optical pump-probe technique, we experimentally study the ultrafast laser-induced dynamics of mutually correlated spins and lattice. It is shown that a femtosecond laser pulse acts as an ultrafast heater and, thus, results in the melting of the antiferromagnetic order. At the same time, the resonant pumping of the T-4(1g) ? T-4(2g) electronic transition in Co2+ ions effectively changes their orbital momentum, giving rise to a mechanical force that moves the ions in the direction parallel to the orientation of their spins, thus generating a coherent B-g phonon mode at the frequency of about 4.7 THz.

Název v anglickém jazyce

Ultrafast laser-induced spin-lattice dynamics in the van der Waals antiferromagnet CoPS3

Popis výsledku anglicky

CoPS3 stands out in the family of the van der Waals antiferromagnets XPS3 (X = Mn, Ni, Fe, and Co) due to the unquenched orbital momentum of the magnetic Co2+ ions, which is known to facilitate the coupling of spins to both electromagnetic waves and lattice vibrations. Here, using a time-resolved magneto-optical pump-probe technique, we experimentally study the ultrafast laser-induced dynamics of mutually correlated spins and lattice. It is shown that a femtosecond laser pulse acts as an ultrafast heater and, thus, results in the melting of the antiferromagnetic order. At the same time, the resonant pumping of the T-4(1g) ? T-4(2g) electronic transition in Co2+ ions effectively changes their orbital momentum, giving rise to a mechanical force that moves the ions in the direction parallel to the orientation of their spins, thus generating a coherent B-g phonon mode at the frequency of about 4.7 THz.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

APL Materials

ISSN

2166-532X

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

„“-„“

Kód UT WoS článku

001023585200005

EID výsledku v databázi Scopus

2-s2.0-85164299881