Spin-wave spectra of perpendicularly magnetized circular submicron dot arrays

• Type: Article in International Scientific Journal
• Date: 2004

Authors

G.N. Kakazei (Author) Other; Wigen, PE (Author) Other; Guslienko, KY (Author) Other; Novosad, V (Author) Other; Slavin, AN (Author) Other; Golub, VO (Author) Other; Lesnik, NA (Author) Other; Otani, Y (Author) Other

Journal

Title: Applied Physics Letters

Vol. 85

Pages: 443-445

ISSN: 0003-6951

Publisher: American Institute of Physics

Indexing

Scopus - 125 Citations

Other information

Authenticus ID: P-00Q-D53

DOI: 10.1063/1.1772868

Abstract (EN): X-band ferromagnetic resonance (FMR) technique was used to study the dynamic microwave properties of arrays of circular Ni and Ni 8Fe 19 dots. The dots, which had the same radius of 0.5 ¿m, were arranged into rectangular or square array with different interdot separation. Multiple sharp resonance peaks were observed below in main FMR peak in the case of perpendicular magnetization, while the relative positions were found to be independent of the interdot separations. Quantitative description of the observed multiresonance FMR spectra were given using the dipole-exchange spin wave dispersion equation for a perpendicularly magnetized film.

Language: English

Type (Professor's evaluation): Scientific