Artículo
Dynamics of all-optical single-shot switching of magnetization in Tb/Co multilayers
Mishra, K.; Blank, T.G.H.; Davies, C.S.; Aviles Felix, Luis Steven
; Salomoni, D.; Buda Prejbeanu, L.D.; Sousa, R.C.; Prejbeanu, I.L.; Koopmans, B.; Rasing, Th.; Kimel, A.V.; Kirilyuk, A.
Fecha de publicación:
04/2023
Editorial:
American Physical Society
Revista:
Physical Review Research
ISSN:
2643-1564
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Recent works have shown that the magnetization of Tb/Co multilayers can be switched all-optically by a single ultrashort laser pulse. Surprisingly, the same process cannot be achieved in TbCo alloys. Here, we present a plausible explanation for this difference in behavior based on the known treatment of angular momenta and the associated gyromagnetic ratio of rare-earth-based ferrimagnets. We then study in detail the composition-dependent dynamic behavior of the switching process in Tb/Co multilayers using single-shot time-resolved pump-probe experiments. We show that the observed dynamics is strongly dependent on the excitation fluence and multilayer composition and does not fit into the accepted framework describing the single-shot switching process found in Gd-based systems and Mn-containing Heusler alloys.
Palabras clave:
OPTICAL SWITCHING
,
FERRIMAGNETS
,
LASER PULSE
,
COMPENSATION TEMPERATURE
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Colecciones
Articulos (UE-INN - NODO BARILOCHE)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Citación
Mishra, K.; Blank, T.G.H.; Davies, C.S.; Aviles Felix, Luis Steven; Salomoni, D.; et al.; Dynamics of all-optical single-shot switching of magnetization in Tb/Co multilayers; American Physical Society; Physical Review Research; 5; 2; 4-2023; 1-13
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