| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1629 - C8-1630 | |
| DOI | https://doi.org/10.1051/jphyscol:19888744 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1629-C8-1630
DOI: 10.1051/jphyscol:19888744
IBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, U.S.A.
J. Phys. Colloques 49 (1988) C8-1629-C8-1630
DOI: 10.1051/jphyscol:19888744
EXCHANGE THROUGH A TUNNELING BARRIER
J. C. SlonczewskiIBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, U.S.A.
Abstract
A tunneling junction consisting of two ferromagnets separated by an insulating barrier is treated in the Stoner limit. One thus derives expressions for Julliere's magnetic valve effect and Heisenberg-type interfacial exchange coupling. In addition, a voltage-dependent irreversible form of exchange coupling is predicted.