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JETP Letters

, Volume 91, Issue 6, pp 308–313 | Cite as

Superconducting triplet spin valve

  • Ya. V. Fominov
  • A. A. Golubov
  • T. Yu. Karminskaya
  • M. Yu. Kupriyanov
  • R. G. Deminov
  • L. R. Tagirov
Condensed Matter

Abstract

We study the critical temperature T c of SFF trilayers (S is a singlet superconductor, F is a ferromagnetic metal), where the long-range triplet superconducting component is generated at noncollinear magnetizations of the F layers. We demonstrate that T c can be a nonmonotonic function of the angle α between the magnetizations of the two F layers. The minimum is achieved at an intermediate α, lying between the parallel (P, α = 0) and antiparallel (AP, α = π) cases. This implies a possibility of a “triplet” spin-valve effect: at temperatures above the minimum T c Tr but below T c P and T c AP , the system is superconducting only in the vicinity of the collinear orientations. At certain parameters, we predict a reentrant T c (α) behavior. At the same time, considering only the P and AP orientations, we find that both the “standard” (T c P < T c AP ) and “inverse” (T c P > T c AP ) switching effects are possible depending on parameters of the system.

Keywords

JETP Letter Switching Effect Ferromagnetic Layer Spin Valve Pair Breaking 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    L. R. Tagirov, Phys. Rev. Lett. 83, 2058 (1999).CrossRefADSGoogle Scholar
  2. 2.
    A. I. Buzdin, A. V. Vedyayev, and N. V. Ryzhanova, Europhys. Lett. 48, 686 (1999); A. I. Buzdin, Rev. Mod. Phys. 77, 935 (2005).CrossRefADSGoogle Scholar
  3. 3.
    Ya. V. Fominov, A. A. Golubov, and M. Yu. Kupriyanov, Pis’ma Zh. Eksp. Teor. Fiz. 77, 609 (2003) [JETP Lett. 77, 510 (2003)].Google Scholar
  4. 4.
    I. C. Moraru, W. P. Pratt, Jr., and N. O. Birge, Phys. Rev. B 74, 220507(R) (2006).CrossRefADSGoogle Scholar
  5. 5.
    J. Y. Gu, C.-Y. You, J. S. Jiang, et al., Phys. Rev. Lett. 89, 267001 (2002).CrossRefADSGoogle Scholar
  6. 6.
    A. Potenza and C. H. Marrows, Phys. Rev. B 71, 180503(R) (2005).CrossRefADSGoogle Scholar
  7. 7.
    I. C. Moraru, W. P. Pratt, Jr., and N. O. Birge, Phys. Rev. Lett. 96, 037004 (2006).CrossRefADSGoogle Scholar
  8. 8.
    G. Nowak, H. Zabel, K. Westerholt, et al., Phys. Rev. B 78, 134520 (2008).CrossRefADSGoogle Scholar
  9. 9.
    A. Yu. Rusanov, S. Habraken, and J. Aarts, Phys. Rev. B 73, 060505(R) (2006).CrossRefADSGoogle Scholar
  10. 10.
    R. Steiner and P. Ziemann, Phys. Rev. B 74, 094504 (2006).CrossRefADSGoogle Scholar
  11. 11.
    A. Singh, C. Sürgers, and H. v. Löhneysen, Phys. Rev. B 75, 024513 (2007).CrossRefADSGoogle Scholar
  12. 12.
    D. H. Kim and T. J. Hwang, Physica C 455, 58 (2007).CrossRefADSGoogle Scholar
  13. 13.
    P. V. Leksin, R. I. Salikhov, I. A. Garifullin, et al., Pis’ma Zh. Eksp. Teor. Fiz. 90, 64 (2009) [JETP Lett. 90, 59 (2009)].Google Scholar
  14. 14.
    F. S. Bergeret, A. F. Volkov, and K. B. Efetov, Phys. Rev. Lett. 86, 4096 (2001); Rev. Mod. Phys. 77, 1321 (2005).CrossRefADSGoogle Scholar
  15. 15.
    J. Linder, M. Zareyan, and A. Sudbø Phys. Rev. B 79, 064514 (2009).CrossRefADSGoogle Scholar
  16. 16.
    S. Oh, D. Youm, and M. R. Beasley, Appl. Phys. Lett. 71, 2376 (1997).CrossRefADSGoogle Scholar
  17. 17.
    K. Westerholt, D. Sprungmann, H. Zabel, et al., Phys. Rev. Lett. 95, 097003 (2005).CrossRefADSGoogle Scholar
  18. 18.
    D. A. Ivanov and Ya. V. Fominov, Phys. Rev. B 73, 214524 (2006).CrossRefADSGoogle Scholar
  19. 19.
    Ya. V. Fominov, N. M. Chtchelkatchev, and A. A. Golubov, Pis’ma Zh. Eksp. Teor. Fiz. 74, 101 (2001) [JETP Lett. 74, 96 (2001)]; Phys. Rev. B 66, 014507 (2002).Google Scholar
  20. 20.
    M. Yu. Kuprianov and V. F. Lukichev, Zh. Eksp. Teor. Fiz. 94, 139 (1988) [Sov. Phys. JETP 67, 1163 (1988)].Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • Ya. V. Fominov
    • 1
  • A. A. Golubov
    • 2
  • T. Yu. Karminskaya
    • 3
  • M. Yu. Kupriyanov
    • 3
  • R. G. Deminov
    • 4
  • L. R. Tagirov
    • 4
  1. 1.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia
  2. 2.Faculty of Science and Technology and MESA + Institute of NanotechnologyUniversity of TwenteEnschedeThe Netherlands
  3. 3.Nuclear Physics InstituteMoscow State UniversityMoscowRussia
  4. 4.Physics FacultyKazan State UniversityKazanRussia

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