Transport properties of discontinuous cCo/sub 80/Fe/sub 20//Al/sub 2/O/sub 3/ multilayers prepared by ion beam sputtering

@article{Kakazei1999TransportPO,
  title={Transport properties of discontinuous cCo/sub 80/Fe/sub 20//Al/sub 2/O/sub 3/ multilayers prepared by ion beam sputtering},
  author={G. N. Kakazei and P. P. Freitas and Susana Cardoso and A. M. L. Lopes and M. M. Pereira de Azevedo and Yu.G. Pogorelov and J. B. Sousa},
  journal={IEEE International Magnetics Conference},
  year={1999},
  pages={EC08-EC08}
}
Ion beam sputtered Co/sub 80/Fe/sub 20/(t)/Al/sub 2/O/sub 3/ (30 /spl Aring/) multilayers were obtained. The Co/sub 80/Fe/sub 20/ layers become discontinuous for nominal thickness t/spl les/18 /spl Aring/. Tunnel magnetoresistance was measured in CIP and CPP geometries, reaching up to 6.5% at room temperature and 11% at 15 K, for as-deposited films in CIP geometry. The temperature dependence of MR was found quite different for the two geometries: fairly strong in the CIP case and almost absent… CONTINUE READING

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