Magnetization reversal of a double-layer exchange-coupled ferromagnetic film

• Published in: Physics of metals and metallography Vol. 102; no. 5; pp. 474 - 477
• Main Authors: Shul’ga, N. V., Doroshenko, R. A.
• Format: Journal Article
• Language: English
• Published: Moscow Springer Nature B.V 01-11-2006
• Subjects: Magnetic fields; Studies
• ISSN: 0031-918X; 1555-6190
• DOI: 10.1134/S0031918X06110032

A theoretical investigation of magnetization reversal of a double-layer magnetic film with an easy-plane and easy-axis anisotropy has been performed. An analytical expression for the magnetization distribution in the layers in the presence of a magnetic field has been obtained. The calculations performed on the basis of the analytical relationships obtained show that when the thickness of the layers is close to the width of a magnetic inhomogeneity, it substantially affects the magnitude of the critical field for the magnetization reversal of the sample and the shape of the magnetization curve. It is also shown that a decrease in the exchange coupling between the layers leads to an increase in the magnitude of the critical field of magnetization reversal.[PUBLICATION ABSTRACT]