Rotation and wall propagation in multidomain Co/Pd islands

Autor: T. Thomson, Guohan Hu, Charles T. Rettner, B. D. Terris
Rok vydání: 2005
Předmět:
Zdroj: IEEE Transactions on Magnetics. 41:3589-3591
ISSN: 0018-9464
DOI: 10.1109/tmag.2005.854733
Popis: Patterned magnetic structures with sizes ranging from 30 nm to 5 /spl mu/m have been fabricated to investigate the magnetization reversal of Co/Pd islands with perpendicular anisotropy. The nucleation field for reversal in islands capable of supporting a multidomain ground state (size ranging from 200 nm to 5 /spl mu/m) is higher than the domain wall propagation field and is characterized by a Stoner-Wohlfarth-like angle dependence. Pre-reversed nucleation sites in the islands leads to the 1/cos(/spl theta/) switching behavior indicative of domain wall motion.
Databáze: OpenAIRE