Journal of Computational Electronics

, Volume 7, Issue 3, pp 454–457

Field-coupled computing in magnetic multilayers

  • György Csaba
  • Paolo Lugli
  • Markus Becherer
  • Doris Schmitt-Landsiedel
  • Wolfgang Porod
Article

Abstract

This paper presents a computational study of ion-beam patterned cobalt-platinum multilayers, which could be used for field-coupled computing. We use micromagnetic simulations to reproduce measured hysteresis curves. This parameterized micromagnetic simulator then will be used for simulating interacting magnetic dots. We demonstrate how logic gates can be built from such coupled dots. We also show how electrical wires—placed beneath or above the magnetic dots—can provide a magnetic field, which propagates the magnetic signals.

Keywords

Magnetic logic devices Field-coupled computing Micromagnetic simulation Cobalt/platinum multilayers FIB patterning Clocking of field-coupled devices 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Cowburn, R.P., Welland, M.E.: Room temperature magnetic quantum cellular automata. Science 287 (2000) Google Scholar
  2. 2.
    Imre, A., Csaba, G., Ji, L., Orlov, A., Bernstein, G.H., Porod, W.: Majority logic gate for magnetic quantum-dot cellular automata. Science 311, 205–208 (2005) CrossRefGoogle Scholar
  3. 3.
    Csaba, G., Lugli, P., Csurgay, A., Porod, W.: Simulation of power gain and dissipation in field-coupled nanomagnets. J. Comput. Electron. 4(1–2), 105 (2005) CrossRefGoogle Scholar
  4. 4.
    Csaba, G., Porod, W., Lugli, P., Csurgay, Á.I.: Activity in field-coupled nanomagnet arrays. Int. J. Circuit Theory Appl. 35(3), 281–293 (2007) CrossRefGoogle Scholar
  5. 5.
    Aign, T., Meyer, P., Lemerle, S., Jamet, J.P., Ferré, J., Mathet, V., Chappert, C., Gierak, J., Vieu, C., Rousseaux, F., Launois, H., Bernas, H.: Magnetization reversal in arrays of perpendicularly magnetized ultrathin dots coupled by dipolar interaction. Phys. Rev. Lett. 81(25) (1998) Google Scholar
  6. 6.
    Csaba, G., Imre, A., Bernstein, G.H., Porod, W., Metlushko, V.: Nanocomputing by field-coupled nanomagnets. IEEE Trans. Nanotechnology 1(4), 209–213 (2002) CrossRefGoogle Scholar
  7. 7.
    Becherer, M., Csaba, G., Emling, R., Ji, L., Porod, W., Lugli, P., Schmitt-Landsiedel, D.: Focused ion beam structured Co/Pt multilayers for field-coupled magnetic computing. In: MRS Spring Meeting 2007, San Francisco, CA, USA, 9–13 April 2007 Google Scholar
  8. 8.
  9. 9.
    Hubert, A., Schafer, R.: Magnetic Domains, vol. I. Springer, Berlin (1998) Google Scholar
  10. 10.
    Alam1, M.T., DeAngelis, J., Putney, M., Sharon Hu, X., Porod, W., Niemier, M., Bernstein, G.H.: Clocking scheme for nanomagnet QCA. In: Proceedings of the 7th IEEE International Conference on Nanotechnology, 2–5 August 2007, Hong Kong Google Scholar

Copyright information

© Springer Science+Business Media LLC 2007

Authors and Affiliations

  • György Csaba
    • 1
  • Paolo Lugli
    • 1
  • Markus Becherer
    • 2
  • Doris Schmitt-Landsiedel
    • 2
  • Wolfgang Porod
    • 3
  1. 1.Institute for NanoelectronicsTechnical University of MunichMunichGermany
  2. 2.Institute for Technical ElectronicsTechnical University of MunichMunichGermany
  3. 3.Center for Nano Science and TechnologyUniversity of Notre DameNotre DameUSA

Personalised recommendations