Influence of electrode structure on magnetotransport in magnetic tunnel junctions

H. Wieldraaijer, P.R. LeClair, J.T. Kohlhepp, H.J.M. Swagten, W.J.M. Jonge, de

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)


The physical structure of the magnetic electrodes of Co-Al2O3-Co magnetic tunnel junctions has been investigated by. means of 59Co nuclear magnetic resonance and X-ray diffraction. Junctions sputtered on FeMn have an essentially fcc [111]-oriented bottom electrode, while all top electrodes and the bottom electrodes of junctions sputtered on Ta are polyphase and polycrystalline. The specifics of the electronic structure of the electrode crystal phases can explain the extra features and asymmetry in the conductance-versus-bias behavior observed in FeMn-based junctions.
Original languageEnglish
Article number1042334
Pages (from-to)2727-2729
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 2002


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