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Flux closure structures in cobalt rings

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: S. P. Li, D. Peyrade, M. Natali, Y. Chen, U. Ebels, L. D. Buda, K. Ounadjela

Editorial: Phys. Rev. Lett., 86, p.1102, 2001.

Rezumat:

Measurements are reported on the magnetization reversal in
submicron magnetic rings fabricated by high-resolution electron
beam lithography and lift-off from Cobalt thin films. For all
dimensions investigated, with diameters of 300 nm-800 nm and a
thickness of 10 nm-50 nm, the flux closure state (FC) is the
stable magnetization configuration. However, with increasing
diameter and decreasing film thickness a metastable near single
domain state (SD) can be obtained during the reversal process in
an in-plane applied field.

Cuvinte cheie: Rings, Flux closure