English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/182434
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Terahertz spin currents and inverse spin Hall effect in thin-film heterostructures containing complex magnetic compounds

AuthorsSeifert, T.; Martens, U.; Günther, S.; Schoen, M. A. W.; Radu, F.; Chen, X. Z.; Lucas, I.; Ramos, R.; Aguirre, Myriam H.; Algarabel, Pedro A. ; Anadón, A.; Körner, H. S.; Walowski, J.; Back, C.; Ibarra, M. Ricardo; Morellón, Luis; Saitoh, E.; Wolf, M.; Song, Cunfeng; Uchida, K.; Münzenberg, M.; Radu, I.; Kampfrath, T.
KeywordsTerahertz spintronics
Femtomagnetism
Spin Hall effect
Spin Seebeck effect
Heterostructures
Issue Date2017
PublisherWorld Scientific Publishing
CitationSPIN 7(3): 1740010 (2017)
AbstractTerahertz emission spectroscopy (TES) of ultrathin multilayers of magnetic and heavy metals has recently attracted much interest. This method not only provides fundamental insights into photoinduced spin transport and spin–orbit interaction at highest frequencies, but has also paved the way for applications such as efficient and ultrabroadband emitters of terahertz (THz) electromagnetic radiation. So far, predominantly standard ferromagnetic materials have been exploited. Here, by introducing a suitable figure of merit, we systematically compare the strength of THz emission from X/Pt bilayers with X being a complex ferro-, ferri- and antiferromagnetic metal, that is, dysprosium cobalt (DyCo5), gadolinium iron (Gd24Fe76), magnetite (Fe3O4) and iron rhodium (FeRh). We find that the performance in terms of spin-current generation not only depends on the spin polarization of the magnet's conduction electrons, but also on the specific interface conditions, thereby suggesting TES to be a highly interface-sensitive technique. In general, our results are relevant for all applications that rely on the optical generation of ultrafast spin currents in spintronic metallic multilayers.
Publisher version (URL)http://dx.doi.org/10.1142/S2010324717400100
URIhttp://hdl.handle.net/10261/182434
DOI10.1142/S2010324717400100
ISSN2010-3247
E-ISSN2010-3255
Appears in Collections:(ICMA) Artículos
Files in This Item:
File Description SizeFormat 
terahertcompo.pdf492,36 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.