Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-29T10:40:43.575Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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