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Concentrational restrictions for race track memories based on permalloy

Published online by Cambridge University Press:  26 February 2011

Peter Weinberger
Peter Weinberger*
Affiliation:
pw@cms.tuwien.ac.at, Center for Computational Nanoscience, Center for Computational Nanoscience, Seilerstäte 10, Vienna, A1010, Austria, 4315880115830, 4315880115898
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Abstract

In using the fully relativistic versions of the Screened Korringa-Kohn-Rostoker method and of the Kubo-Greenwod equation domain wall resistivities at the equilibrium domain wall width are calculated for NicFe1-c. It is found that in comparison to the corresponding "bulk" case only between about 0.6¡Ü c<1 the anisotropic magnetoresistance is reduced in the presence of a domain wall sufficiently enough in order to be of practical use for potential race track memories. Around 80% Ni this reduction amount to remarkable 16%!

Keywords

magnetoresistance (transport)spintronicnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1032: Symposium I – Nanoscale Magnetic Materials and Applications , 2007 , 1032-I01-01
Copyright
Copyright © Materials Research Society 2008

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References

references

[1] Allwood, D. A. et al., Science 309, 1688 (2005)10.1126/science.1108813Google Scholar
[2] Parkin, S. S. P., U. S. Patent No. US 683 400 5 (2004)Google Scholar
[3] Wolf, S. A. Treger, D., Chtchelkanova, A., MRS Bulletin 31, 400 (2006)10.1557/mrs2006.101Google Scholar
[4] Kläui, M., Jubert, P.-O-, Allenspach, R., Bischof, A., Bland, J. A. C., Faini, G., Rüdinger, U., Vaz, C. A. F., Vila, L., and Vouile, C., Phys. Rev. Lett. 95, 026601 (2005)Google Scholar
[5] Hayashi, M., Thomas, L., Rettner, C., Moriya, R., Bazaliy, Y. B., Parkin, S. S. P., Phys. Rev. Lett. 98, 037204 (2007).10.1103/PhysRevLett.98.037204Google Scholar
[6] Thomas, L., Hayashi, M., Jiang, X., Moriya, R., Rettner, C., and Parkin, S. S. P., Phys. Rev. Lett. 315, 1553 (2007)Google Scholar
[7] Hayashi, M., Thomas, L., Rettner, C., Moriya, R., X. Jiang and Parking, S. S. P., Phys. Rev. Lett. 96, 197207 (2006).10.1103/PhysRevLett.96.197207Google Scholar
[8] Hayashi, M., Thomas, L., Rettner, C., Moriya, R., Jiang, X., Parkin, S. S. P., Phys. Rev. Lett. 97, 207205 (2006).Google Scholar
[9] Jubert, P.-O., Allenspach, R., and Bischof, A., phys. Rev. B 69, 2204(R) (2004).10.1103/PhysRevB.69.220410Google Scholar
[10] Switalla, J., Gyorffy, B. L., and Szunyogh, L., phys. Rev. B 63, 104423 (2001).Google Scholar
[11] Weinberger, P., Phys. Rev. Lett. 98, 027205 (2007).10.1103/PhysRevLett.98.027205Google Scholar
[12] see for example, Levy, P. M. and Mertig, I., Theorh of Giant Magnetoresistance, in Sarma, D. D., Kotliar, G., Tokura, Y. (Eds.), Advances in Codensed Matter, Vol. 3, Taylor & Francis, London, New York (2002)Google Scholar
[13] for a review see: Weinberger, P., Physics Reports 377, 281–387 (2003)10.1016/S0370-1573(02)00600-2Google Scholar
[14] see for example, Khmelevskyi, S., Palotas, K., Szunyogh, L., and Weinberger, P., phys. Rev. B 68, 012402 (2003)10.1103/PhysRevB.68.012402Google Scholar
[15] Weinberger, P., Phys. Rev. Lett. 100, 017201 (2008).10.1103/PhysRevLett.100.017201Google Scholar
[16] Zabloudil, J., Hammerling, R., Szunyogh, L. and Weinberger, P., Electron Scattering in Solid Matter (Springer Berlin Heidelberg New York, 2004).Google Scholar
[17] Vosko, S. H., Wilk, L., and Nusair, M., Can. J. Phys. 58, 1200 (1980).10.1139/p80-159Google Scholar