Exchange-spring systems: Coupling of hard and soft ferromagnets as measured by magnetization and Brillouin light scattering (invited)

Autor:	C. H. Sowers, Eric E. Fullerton, M. Grimsditch, S. Jiang, Robert E. Camley, S. D. Bader
Rok vydání:	1999
Předmět:	Brillouin zone Condensed Matter::Materials Science Magnetic anisotropy Magnetization Materials science Domain wall (magnetism) Condensed matter physics Ferromagnetism Spin wave Magnon Magnet General Physics and Astronomy
Zdroj:	Journal of Applied Physics. 85:5901-5904
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.369908
Popis:	An experimental and theoretical study is presented of the normal magnetic modes in spiral ferromagnetic structures. The bilayer system studied consists of Fe layers (25, 50, 100, and 200 A thick) that are exchange coupled to 200 A thick SmCo films that have ≈200 kOe anisotropies. The Fe spiral—induced by an external magnetic field that is applied opposite to the direction of the magnetized film—results in a structure similar to that encountered in a Bloch domain wall. The magnetization and the field dependence of the magnons in various Fe films are explained by the theoretical model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::810d37bb757fb1878e566e9256d60ca3 https://doi.org/10.1063/1.369908 Zobrazit plný text záznamu