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Orange Peel coupling in granular ferromagnetic films

D. Barness·A. Frydman
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Abstract

We present magnetoresistance (MR) measurements performed on magnetic tunnel junctions in which one of the electrodes is a granular ferromagnetic film. These junctions exhibit a zero field resistance dip. The dip magnitude depends on the size of the grains. We interpret these results as a consequence of the orange peel effect between the continuous ferromagnetic film and the magnetic grains. The coupling is found to be much stronger than that between continuous ferromagnetic layers.

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D. Barness, A. Frydman. 2003-07-11. Orange Peel coupling in granular ferromagnetic films. https://doi.org/10.1103/physrevb.72.012413

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