Correlation between Exchange Bias and Pinned Interfacial Spins
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- 1 July 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 91 (1) , 017203
- https://doi.org/10.1103/physrevlett.91.017203
Abstract
Using x-ray magnetic circular dichroism, we have detected the very interfacial spins that are responsible for the horizontal loop shift in three different exchange bias sandwiches, chosen because of their potential for device applications. The “pinned” uncompensated interfacial spins constitute only a fraction of a monolayer and do not rotate in an external magnetic field since they are tightly locked to the antiferromagnetic lattice. A simple extension of the Meiklejohn and Bean model is proposed to account quantitatively for the exchange bias fields in the three studied systems from the experimentally determined number of pinned moments and their sizes.Keywords
This publication has 21 references indexed in Scilit:
- Spectroscopic Identification and Direct Imaging of Interfacial Magnetic SpinsPhysical Review Letters, 2001
- Weak magnetic moment on IrMn exchange bias pinning layersApplied Physics Letters, 2001
- Correlation between antiferromagnetic interface coupling and positive exchange biasPhysical Review B, 2000
- Exchange anisotropy — a reviewJournal of Magnetism and Magnetic Materials, 1999
- Spin Structure at the Interface of Exchange Biased FeMnCo BilayersPhysical Review Letters, 1999
- Exchange biasJournal of Magnetism and Magnetic Materials, 1999
- Interfacial Uncompensated Antiferromagnetic Spins: Role in Unidirectional Anisotropy in PolycrystallineBilayersPhysical Review Letters, 1997
- Non-Rayleigh statistics of waves in random systemsPhysical Review B, 1991
- Exchange Anisotropy—A ReviewJournal of Applied Physics, 1962
- New Magnetic AnisotropyPhysical Review B, 1956