Spin-valve structures exchange biased with a-Tb0.23Co0.77 layers
- 15 May 1994
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 75 (10) , 6480-6482
- https://doi.org/10.1063/1.356970
Abstract
Spin‐valve structures, glass/NiFeI/Cu/NiFeII/a‐TbCo/Cu, were prepared where the pinned Permalloy layer is exchanged biased by a 200 to 400 Å thick a‐Tb0.23Co0.77 layer. Exchange fields between 50 and 250 Oe were achieved with TbCo thicknesses below 400 Å, for a pinned Permalloy layer 150 Å thick. The exchange fields are strongly dependent on substrate bias. The magnetoresistance of these structures reaches 4.5% when thin Co layers are added at the NiFe/Cu interfaces.This publication has 7 references indexed in Scilit:
- Magnetotransport properties of magnetically soft spin-valve structures (invited)Journal of Applied Physics, 1991
- Micromagnetic model of an exchange coupled NiFe-TbCo bilayerJournal of Applied Physics, 1991
- Giant magnetoresistive in soft ferromagnetic multilayersPhysical Review B, 1991
- Improved bias and stability in dual-exchange-biased unshielded magnetoresistive headsIEEE Transactions on Magnetics, 1990
- Dual exchange biased NiFe-TbCo unshielded MR heads for high density recordingIEEE Transactions on Magnetics, 1989
- Mechanisms of exchange anisotropy (invited)Journal of Applied Physics, 1988
- Exchange coupled NiFe-TbCo thin films for use in self-biased magnetoresistive headsIEEE Transactions on Magnetics, 1988