- Cited by 17
De Teresa, J. M. Barthélémy, A. Fert, A. Contour, J. P. Lyonnet, R. Montaigne, F. Seneor, P. and Vaurès, A. 1999. Inverse Tunnel Magnetoresistance inCo/SrTiO3/La0.7Sr0.3MnO3: New Ideas on Spin-Polarized Tunneling. Physical Review Letters, Vol. 82, Issue. 21, p. 4288.
Levy, Peter M. and Zhang, Shufeng 1999. Spin dependent tunneling. Current Opinion in Solid State and Materials Science, Vol. 4, Issue. 2, p. 223.
de Teresa, J.M Barthélémy, A Contour, J.P and Fert, A 2000. Manganite-based magnetic tunnel junctions: new ideas on spin-polarised tunnelling. Journal of Magnetism and Magnetic Materials, Vol. 211, Issue. 1-3, p. 160.
Monsma, D. J. and Parkin, S. S. P. 2000. Spin polarization of tunneling current from ferromagnet/Al2O3 interfaces using copper-doped aluminum superconducting films. Applied Physics Letters, Vol. 77, Issue. 5, p. 720.
Itoh, H. and Inoue, J. 2000. Tunnel Magnetoresistance and Spin Polarization in Ferromagnetic Tunnel Junctions.. Journal of the Magnetics Society of Japan, Vol. 24, Issue. 4−2, p. 583.
Monsma, D. J. and Parkin, S. S. P. 2000. Temporal evolution of spin-polarization in ferromagnetic tunnel junctions. Applied Physics Letters, Vol. 77, Issue. 6, p. 883.
Fert, A. Barthélémy, A. Youssef, J.Ben Contour, J.-P. Cros, V. De Teresa, J.M. Hamzic, A. George, J.M. Faini, G. Grollier, J. Jaffrès, H. Le Gall, H. Montaigne, F. Pailloux, F. and Petroff, F. 2001. Review of recent results on spin polarized tunneling and magnetic switching by spin injection. Materials Science and Engineering: B, Vol. 84, Issue. 1-2, p. 1.
Kokado, Satoshi Ichimura, Masahiko Onogi, Toshiyuki Sakuma, Akimasa Arai, Reiko Hayakawa, Jun Ito, Kenchi and Suzuki, Yoshio 2001. Insulator thickness dependence of tunnel magnetoresistance effect in a model of Co/Al-oxide/Co junctions. Applied Physics Letters, Vol. 79, Issue. 24, p. 3986.
Itoh, Hiroyoshi and Inoue, Jun-ichiro 2001. Interfacial electronic states and magnetoresistance in tunnel junctions. Surface Science, Vol. 493, Issue. 1-3, p. 748.
Plisch, M. J. Chang, J. L. Silcox, J. and Buhrman, R. A. 2001. Atomic-scale characterization of a Co/AlOx/Co magnetic tunnel junction by scanning transmission electron microscopy. Applied Physics Letters, Vol. 79, Issue. 3, p. 391.
Käufler, A. Luo, Y. Samwer, K. Gieres, G. Vieth, M. and Wecker, J. 2002. Tunnel-magnetoresistance system with an amorphous detection layer. Journal of Applied Physics, Vol. 91, Issue. 3, p. 1701.
Barthélémy, A. Fert, A. Contour, J-P. Bowen, M. Cros, V. De Teresa, J.M. Hamzic, A. Faini, J.C. George, J.M. Grollier, J. Montaigne, F. Pailloux, F. Petroff, F. and Vouille, C. 2002. Magnetoresistance and spin electronics. Journal of Magnetism and Magnetic Materials, Vol. 242-245, Issue. , p. 68.
Wang, Kuising Levy, Peter M. Zhang, Shufeng and Szunyogh, Laszlo 2003. On the calculation of the magnetoresistance of tunnel junctions with parallel paths of conduction. Philosophical Magazine, Vol. 83, Issue. 10, p. 1255.
LeClair, P. Moodera, J.S. and Swagten, H.J.M. 2005. Ultrathin Magnetic Structures III. p. 51.
Valenzuela, S. O. Monsma, D. J. Marcus, C. M. Narayanamurti, V. and Tinkham, M. 2005. Spin Polarized Tunneling at Finite Bias. Physical Review Letters, Vol. 94, Issue. 19,
Kado, T. Saito, H. and Ando, K. 2007. Room-temperature magnetoresistance in magnetic tunnel junctions with Fe3O4 electrode. Journal of Applied Physics, Vol. 101, Issue. 9, p. 09J511.
Imam, M. Stojić, N. and Binggeli, N. 2019. Mechanism for Reversible Electrical Switching of Spin Polarization in Co/PbZr0.2Ti0.8O3/La0.7Sr0.3MnO3 Tunnel Junctions. Physical Review Applied, Vol. 11, Issue. 1,
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In order to elucidate the mechanism of spin-polarized electron tunneling in thin-film ferromagnet-insulator junctions, self-consistent band structure calculations of the CO/Al2O3 interface have been performed using a new LMTO technique. Since the results of the calculations are very sensitive to the distance between the Co and Al planes, we have minimised the total energy with respect to this distance. Our calculations show that at the Fermi energy a strong bonding between the 3d-electrons of Co with the sp-electrons of Al at the interface can have an important influence on the spin polarization of the layer-projected density of states (LPDOS) of inner Al and O layers. Since the Fermi energy lies within the minority-spin d-band of Co but above the majority-spin d-band, the sp-d bonding results in a smaller LPDOS of the minority-spin electrons of the interfacial Al layers in comparison to that of the majority-spin electrons. This asymmetry in the LPDOS extends to the inner Al2O3 layers implying a positive spin polarization of the tunneling density of states. The result is consistent with experimental observations on tunnelling from cobalt through alumina where positive values of the spin polarization of the tunnelling current were measured.
Hide All1. Meservey, R. and Tedrow, R.M., Phys. Reports, 238, 173, (1994).2. Hertz, J.A. and Aoi, K., Phys. Rev. B, 8, 3252, (1973).3. Steams, M.B., J. Magn. Magn. Mater., 5, 1062, (1977).4. Tsymbal, E. Yu. and Pettifor, D.G., J. Phys.: Cond. Matter, 9, L411, (1997).5. Slonczewski, J.C., Phys. Rev. B, 39, 6995, (1989).6. Finnis, M.W., J. Phys.: Cond. Matter, 8, 5811, (1996).7. Caroli, C., Combescot, R., Nozieres, P. and Saint-James, D., J. Phys. C, 4, 916, (1971).8. Krier, G., Jepsen, O., Burkhart, A. and Andersen, O.K., The TB-LMTO-ASA Program, Stuttgart, April (1995).9. von Barth, U. and Hedin, L., J. Phys. C, 5, 1629, (1972).10. Hong, S.Y. and Anderson, A.B., Surface Science, 230, 175, (1990).11. Kresse, G. and Furthuller, J., The VASP GUIDE, Vienna, Aug. (1997).12. Boettger, J.C., Phys. Rev. B, 55, 750, (1997).13. French, R.H., J. Am. Ceram. Soc, 73, 477, (1990).14. Nguyen-Manh, D., Mayou, D., Pasturel, A. and Cyrot-Lackmann, F., J. Phys. F, 15, 1991, (1985).
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