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Updated: Aug 9, 2026
Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
Flux closure structures in cobalt rings
1Laboratoire de Microstructures et de Microélectronique (CNRS), 196 Avenue H. Ravera, 92225 Bagneux Cedex, France.
Abstract:
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 300-800 nm and a thickness of 10-50 nm, the flux closure state is the stable magnetization configuration. However, with increasing diameter and decreasing film thickness a metastable near single domain state can be obtained during the reversal process in an in-plane applied field.
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