Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9834621 | Journal of Magnetism and Magnetic Materials | 2005 | 4 Pages |
Abstract
We present a study of the thermal stability of tunneling spin polarization in Al/AlOx/ferromagnet junctions based on the spin-polarized tunneling technique, in which the Zeeman-split superconducting density of states in the Al electrode is used as a detector for the spin polarization. Thermal robustness of the polarization, which is of key importance for the performance of magnetic tunnel junction devices, is demonstrated for post-deposition anneal temperatures up to 500 °C with Co and Co90Fe10 top electrodes, independent of the presence of an FeMn layer on top of the ferromagnet.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
C.H. Kant, J.T. Kohlhepp, P.V. Paluskar, H.J.M. Swagten, W.J.M. de Jonge,