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Laser-triggered terahertz radiation from interlayer exchange-coupled spintronic emitters

Intensity of THz transients triggered by laser excitation in NM/FM/NM/FM/NM multilayers (FM - ferromagnet, NM - normal metal) can be tuned by the interlayer exchange coupling between the two FM layers. We ascribe this tunability to the constructive and destructive interference of the THz transients...

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Bibliographic Details
Main Authors: Adam, Roman, Cao, Derang, Bürgler, Daniel E., Heidtfeld, Sarah, Wang, Fangzhou, Greb, Christian, Chen, Genyu, Cheng, Jing, Chakraborty, Debamitra, Büscher, Markus, Mikulics, Martin, Hardtdegen, Hilde, Sobolewski, Roman, Schneider, Claus M.
Format: Conference Proceeding
Language:English
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Summary:Intensity of THz transients triggered by laser excitation in NM/FM/NM/FM/NM multilayers (FM - ferromagnet, NM - normal metal) can be tuned by the interlayer exchange coupling between the two FM layers. We ascribe this tunability to the constructive and destructive interference of the THz transients generated by closely-spaced NM/FM and FM/NM spintronic THz emitters.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0188731