Detection of ferromagnetic resonance from 1 nm-thick Co

Autor: Shugo Yoshii, Ryo Ohshima, Yuichiro Ando, Teruya Shinjo, Masashi Shiraishi
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
Druh dokumentu: article
ISSN: 2045-2322
DOI: 10.1038/s41598-020-72760-7
Popis: Abstract To explore the further possibilities of nanometer-thick ferromagnetic films (ultrathin ferromagnetic films), we investigated the ferromagnetic resonance (FMR) of 1 nm-thick Co film. Whilst an FMR signal was not observed for the Co film grown on a SiO2 substrate, the insertion of a 3 nm-thick amorphous Ta buffer layer beneath the Co enabled the detection of a salient FMR signal, which was attributed to the smooth surface of the amorphous Ta. This result implies the excitation of FMR in an ultrathin ferromagnetic film, which can pave the way to controlling magnons in ultrathin ferromagnetic films.
Databáze: Directory of Open Access Journals
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