Abstract
Recent experiments revealed an apparently bias-dependent tunneling magnetoresistance between a transition metal (such as Fe, Co) and an oxide barrier such as SrTiO3. We examine the materials issues involved in this type of hybrid transition metal-oxide junctions. The junction interface is shown to be unstable against thermal treatment or high-bias current stress. We conclude that the junction magnetoresistance is largely determined by the formation of an interface oxide layer different from the barrier or the transition metal electrode themselves.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Z. Sun, D. W. Abraham, K. Roche, and S. S. P. Parkin, Appl. Phys. Lett. 73, 1008 (1998).
J. M. De Teresa, A. Barthélémy, J. P. Contour, A. Fert, R. Lyonnet, F. Montaigne, A. Vaurès, and P. Seneor, MRS Symposium, 1999 Spring Meeting, San Francisco (1999).
J. M. De Teresa, A. Barthelemy, A. Fert, J. P. Contour, R. Lyonnet, F. Montaigne, P. Seneor, and A. Vaurès, Phys. Rev. Lett. 82, 4288 (1999).
Jose Maria De Teresa, Agnés Barthélémy, Albert Fert, Jean Pierre Contour, François Montaigne, and Pierre Seneor, Science 286, 507 (1999).
Manish Sharma, Shan X. Wang, and Janice H. Nickel, Phys. Rev. Lett. 82, 616 (1999).
J. Z. Sun, W. J. Gallagher, P. R. Duncombe, L. Krusin-Elbaum, R. A. Altman, A. Gupta, Yu Lu, G. Q. Gong, and Gang Xiao, Appl. Phys. Lett. 69, 3266 (1996).
J. Z. Sun, L. Krusin-Elbaum, A. Gupta, Gang Xiao, P. R. Duncombe, and S. S. P. Parkin, IBM J. of Res. and Dev. 42, 89 (1998).
J. Z. Sun, L. Krusin-Elbaum, P. R. Duncombe, A. Gupta, and R. B. Laibowitz, Appl. Phys. Lett. 70, 1769 (1997).
Yu Lu, X. W. Li, G. Q. Gong, Gang Xiao, A. Gupta, P. Lecoeur, J. Z. Sun, Y. Y. Wang, and V. P. Dravid, Phys. Rev. B 54, R8357 (1996).
L. F. Mattheiss, Phys. Rev. B 6, 4718, 4740(1972).
R. J. Pedersen and F. L. Vernon, Appl. Phys. Lett. 10, 29 (1967).
R. J. M. Van de Veerdonk, J. Nowak, R. Meservey, J. S. Moodera and W. J. M. De Jone, Appl. Phys. Lett. 71, 2839(1997).
Jagadeesh S. Moodera, Janusz Nowak, and Rene J. M. van de Veerdonk, Phys. Rev. Lett. 80, 2941 (1998).
Jagadeesh S. Moodera, Janusz Nowak, Lisa R. Kinder, Paul M. Tedrow, J. M. Van de Veerdonk René, Bart A. Smits, Henk Maarten Van Kampen J. M. Swagten, Wim J. M. De Jonge, Phys. Rev. Lett. 83, 3029(1999).
For a more complete description of the evolutoin ofR(H) at different biases for these junctions, see J. Z. Sun, K. P. Roche and S. S. P. Parkin, Phys. Rev. B 61, (April 1, 2000).
K. H. Gundlach and H. Konishi, Appl. Phys. Lett. 46, 441 (1985).
B. H. Moeckly, D. K. Lathrop, and R. A. Buhrman, Phys. Rev. B 47, 400 (1993).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sun, J.Z., Roche, K.P. & Parkin, S.S.P. Interface Stability in Hybrid Transition Metal-Oxide Magnetic Junctions. MRS Online Proceedings Library 623, 51 (2000). https://doi.org/10.1557/PROC-623-51
Published:
DOI: https://doi.org/10.1557/PROC-623-51