Manipulating ultrafast magnetization dynamics of ferromagnets using the odd-even layer dependence of two-dimensional transition metal di-chalcogenides

0585213 - FZÚ 2025 RIV GB eng J - Článek v odborném periodiku
Dutta, S. - Husain, S. - Kumar, Prabhat - Gupta, N.K. - Chaudhary, S. - Svedlindh, P. - Barman, A.
Manipulating ultrafast magnetization dynamics of ferromagnets using the odd-even layer dependence of two-dimensional transition metal di-chalcogenides.
Nanoscale. Roč. 16, č. 8 (2024), s. 4105-4113. ISSN 2040-3364. E-ISSN 2040-3372
Institucionální podpora: RVO:68378271
Klíčová slova: transition metal dichalcogenides * ferromagnet
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 6.7, rok: 2022

Two-dimensional transition metal dichalcogenides (TMDs) have drawn immense interest due to their strong spin–orbit coupling and unique layer number dependence in response to spin–valley coupling. This leads to the possibility of controlling the spin degree of freedom of the ferromagnet (FM) in thin film heterostructures and may prove to be of interest for next-generation spin-based devices. Here, we experimentally demonstrate the odd–even layer dependence of WS2 nanolayers by measurements of the ultrafast magnetization dynamics in WS2/Co3FeB thin film heterostructures by using time-resolved Kerr magnetometry. The fluence (photon energy per unit area) dependent magnetic damping (α) reveals the existence of broken symmetry and the dominance of inter- and intraband scattering for odd and even layers of WS2, respectively.
Trvalý link: https://hdl.handle.net/11104/0352965