Advertisement

JETP Letters

, Volume 85, Issue 3, pp 160–164 | Cite as

Current-induced inverse population of spin subbands in magnetic junctions

  • Yu. V. Gulyaev
  • P. E. Zil’berman
  • A. I. Krikunov
  • A. I. Panas
  • É. M. Éphshteĭn
Condensed Matter

Abstract

The spin flux matching conditions that should be satisfied at the boundaries between contacting layers of a magnetic junction to ensure the inverse population of spin subbands at experimentally achievable current densities of −107–108 A/cm2 are determined. The essence of the conditions is that an efficient spin injection takes place at the input boundary, whereas the injection at the output boundary is blocked. The fulfillment of the matching conditions for contacting layers with antiparallel magnetization orientations leads to stability in magnetic fluctuations for any forward currents.

PACS numbers

72.25.-b 75.47.-m 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. G. Aronov and G. E. Pikus, Fiz. Tekh. Poluprovodn. (Leningrad) 10, 1177 (1976) [Sov. Phys. Semicond. 10, 698 (1976)].Google Scholar
  2. 2.
    J. C. Slonczewski, J. Magn. Magn. Mater. 159, L1 (1996).CrossRefADSGoogle Scholar
  3. 3.
    L. Berger, Phys. Rev. B 54, 9353 (1996).CrossRefADSGoogle Scholar
  4. 4.
    R. J. Elliott, E. M. Epshtein, Yu. V. Gulyaev, and P. E. Zilberman, J. Magn. Magn. Mater. 271, 88 (2004).CrossRefADSGoogle Scholar
  5. 5.
    Yu. V. Gulyaev, P. E. Zil’berman, É. M. Épshteĭn, and R. J. Elliott, Pis’ma Zh. Éksp. Teor. Fiz. 76, 189 (2002) [JETP Lett. 76, 155 (2002)].Google Scholar
  6. 6.
    V. V. Osipov and N. A. Viglin, Radiotekh. Élektron. (Moscow) 48, 601 (2003) [J. Commun. Technol. Electron. 48, 548 (2003)].Google Scholar
  7. 7.
    A. K. Kadigrobov, Z. Ivanov, T. Claeson, et al., Europhys. Lett. 67, 948 (2004).CrossRefADSGoogle Scholar
  8. 8.
    Yu. V. Gulyaev, P. E. Zil’berman, É. M. Épshteĭn, and R. J. Elliott, Zh. Éksp. Teor. Fiz. 127, 1138 (2005) [JETP 100, 1005 (2005)].Google Scholar
  9. 9.
    E. M. Epshtein, Yu. V. Gulyaev, and P. E. Zilberman, http://www.arXiv.org/cond-mat/0412523.
  10. 10.
    Yu. V. Gulyaev, P. E. Zil’berman, and É. M. Épshteĭn, Dokl. Akad. Nauk 410, 197 (2006) [Dokl. Phys. 51, 496 (2006)].Google Scholar
  11. 11.
    G. Schmidt, D. Ferrand, L. W. Molenkamp, et al., Phys. Rev. B 62, R4790 (2000).CrossRefADSGoogle Scholar
  12. 12.
    J. A. Katine, F. J. Albert, R. A. Buhrman, et al., Phys. Rev. Lett. 84, 3149 (2000).CrossRefADSGoogle Scholar
  13. 13.
    M. Tsoi, A. G. M. Jansen, J. Bass, et al., Phys. Rev. Lett. 80, 4281 (1998); Phys. Rev. Lett. 81, 493(E) (1998).CrossRefADSGoogle Scholar
  14. 14.
    S. J. C. H. Theeuwen, L. Carro, R. P. Wellock, et al., Appl. Phys. Lett. 75, 3677 (1999).CrossRefADSGoogle Scholar
  15. 15.
    J. S. Moodera and G. Mathon, J. Magn. Magn. Mater. 200, 248 (1999).CrossRefADSGoogle Scholar
  16. 16.
    R. Meservey and P. M. Tedrow, Phys. Rep. 238, 174 (1994).CrossRefADSGoogle Scholar
  17. 17.
    A. M. Haghiri-Gosnet, T. Arnal, R. Soulimane, et al., Phys. Status Solidi A 201, 1392 (2004).CrossRefADSGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • Yu. V. Gulyaev
    • 1
  • P. E. Zil’berman
    • 1
  • A. I. Krikunov
    • 1
  • A. I. Panas
    • 1
  • É. M. Éphshteĭn
    • 1
  1. 1.Institute of Radio Engineering and ElectronicsRussian Academy of SciencesMoscowRussia

Personalised recommendations