The Role of Ferromagnetic Layer Thickness ...
Document type :
Compte-rendu et recension critique d'ouvrage
DOI :
Title :
The Role of Ferromagnetic Layer Thickness and Substrate Material in Spintronic Emitters
Author(s) :
Buryakov, Arseniy [Auteur]
Russian Technological University [MIREA]
Avdeev, Pavel [Auteur]
Russian Technological University [MIREA]
Khusyainov, Dinar [Auteur]
Radboud University [Nijmegen]
Bezvikonnyy, Nikita [Auteur]
Russian Technological University [MIREA]
Coclet, Andreas [Auteur]
Russian Technological University [MIREA]
Klimov, Alexey [Auteur]
Russian Technological University [MIREA]
Tiercelin, Nicolas [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Lavrov, Sergey [Auteur]
Russian Technological University [MIREA]
Preobrazhensky, Vladimir L. [Auteur]
A. M. Prokhorov General Physics Institute [GPI]
the Russian Academy of Sciences [Moscow, Russia] [RAS]
Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique [LIA LICS/LEMAC]
Russian Technological University [MIREA]
Avdeev, Pavel [Auteur]
Russian Technological University [MIREA]
Khusyainov, Dinar [Auteur]
Radboud University [Nijmegen]
Bezvikonnyy, Nikita [Auteur]
Russian Technological University [MIREA]
Coclet, Andreas [Auteur]
Russian Technological University [MIREA]
Klimov, Alexey [Auteur]
Russian Technological University [MIREA]
Tiercelin, Nicolas [Auteur]

Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Lavrov, Sergey [Auteur]
Russian Technological University [MIREA]
Preobrazhensky, Vladimir L. [Auteur]
A. M. Prokhorov General Physics Institute [GPI]
the Russian Academy of Sciences [Moscow, Russia] [RAS]
Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique [LIA LICS/LEMAC]
Journal title :
Nanomaterials
Functionalized Magnetite Nanomaterials — Synthesis, Properties, and Applications
Functionalized Magnetite Nanomaterials — Synthesis, Properties, and Applications
Pages :
1710
Publisher :
MDPI
Publication date :
2023
ISSN :
2079-4991
English keyword(s) :
spintronic emitters
THz radiation
THz-TDS
ferromagnet
semiconductor
THz radiation
THz-TDS
ferromagnet
semiconductor
HAL domain(s) :
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
English abstract : [en]
In this article, we investigate optically induced terahertz radiation in ferromagnetic FeCo layers of varying thickness on Si and SiO2 substrates. Efforts have been made to account for the influence of the substrate on the ...
Show more >In this article, we investigate optically induced terahertz radiation in ferromagnetic FeCo layers of varying thickness on Si and SiO2 substrates. Efforts have been made to account for the influence of the substrate on the parameters of the THz radiation generated by the ferromagnetic FeCo film. The study reveals that the thickness of the ferromagnetic layer and the material of the substrate significantly affect the generation efficiency and spectral characteristics of the THz radiation. Our results also emphasize the importance of accounting for the reflection and transmission coefficients of the THz radiation when analyzing the generation process. The observed radiation features correlate with the magneto-dipole mechanism, triggered by the ultrafast demagnetization of the ferromagnetic material. This research contributes to a better understanding of THz radiation generation mechanisms in ferromagnetic films and may be useful for the further development of THz technology applications in the field of spintronics and other related areas. A key discovery of our study is the identification of a nonmonotonic relationship between the radiation amplitude and pump intensity for thin films on semiconductor substrates. This finding is particularly significant considering that thin films are predominantly used in spintronic emitters due to the characteristic absorption of THz radiation in metals.Show less >
Show more >In this article, we investigate optically induced terahertz radiation in ferromagnetic FeCo layers of varying thickness on Si and SiO2 substrates. Efforts have been made to account for the influence of the substrate on the parameters of the THz radiation generated by the ferromagnetic FeCo film. The study reveals that the thickness of the ferromagnetic layer and the material of the substrate significantly affect the generation efficiency and spectral characteristics of the THz radiation. Our results also emphasize the importance of accounting for the reflection and transmission coefficients of the THz radiation when analyzing the generation process. The observed radiation features correlate with the magneto-dipole mechanism, triggered by the ultrafast demagnetization of the ferromagnetic material. This research contributes to a better understanding of THz radiation generation mechanisms in ferromagnetic films and may be useful for the further development of THz technology applications in the field of spintronics and other related areas. A key discovery of our study is the identification of a nonmonotonic relationship between the radiation amplitude and pump intensity for thin films on semiconductor substrates. This finding is particularly significant considering that thin films are predominantly used in spintronic emitters due to the characteristic absorption of THz radiation in metals.Show less >
Language :
Anglais
Popular science :
Non
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