Advertisement

Controlling Exchange Coupling Strength in Ni x Cu1−x Thin Films

  • B. Nagy
  • Y. N. Khaydukov
  • L. F. Kiss
  • S. Sajti
  • D. G. Merkel
  • F. Tanczikó
  • A. S. Vasenko
  • R. O. Tsaregorodsev
  • A. Rühm
  • T. Keller
  • L. Bottyán
Original Paper
  • 147 Downloads

Abstract

The thickness (d F) and concentration (x) dependence of the Curie temperature of Ni x Cu1−x (d F) ferromagnetic alloy layers (x=0.55, 0.65, d F=[4.5 nm÷12 nm]) in contact with a vanadium layer was studied. The Curie temperature of the ferromagnetic layers depends on the thickness when it is comparable with the transition layer between the F and the vanadium layers, which is attributed to the proximity coupling of the interface region with the rest of the F layer. The present study provides valuable information for fabrication of samples with controlled exchange coupling strength for studies of superconductor/ferromagnet proximity effects.

Keywords

Ferromagnet thin film Finite size effect Proximity coupling 

Notes

Acknowledgements

We acknowledge G. Gy. Kertész for help with the sample preparation and Drs. J. Major, I. Bakonyi, and A.A. Golubov for their fruitful discussions. The financial support of the National Office of Innovation of Hungary under contract NAP-VENEUS and the European Commission under the 7th Framework Programme through the “Research Infrastructures” action, NMI3, is gratefully acknowledged.

References

  1. 1.
    Buzdin, I.: Rev. Mod. Phys. 77, 935 (2005) ADSCrossRefGoogle Scholar
  2. 2.
    Anderson, W., Suhl, H.: Phys. Rev. 116, 898 (1959) ADSCrossRefGoogle Scholar
  3. 3.
    Buzdin, I., Bulaevskii, L.N.: Sov. Phys. JETP 67, 576 (1988) Google Scholar
  4. 4.
    Bergeret, S., Efetov, K.B., Larkin, A.I.: Phys. Rev. B 62, 11872 (2000) ADSCrossRefGoogle Scholar
  5. 5.
    Chakrabarty, D.J., Laughlin, D.E., Chen, S.W., Chang, Y.A.: In: Nash, P. (ed.) Phase Diagrams of Binary Nickel Alloys, pp. 85–95. ASM International, Materials Park (1991) Google Scholar
  6. 6.
    Bakonyi, I., Toth-Kadar, E., Toth, J., Becsei, T., Tarnoczi, T., Kamasa, P.: J. Phys. Condens. Matter 11, 963 (1999) ADSCrossRefGoogle Scholar
  7. 7.
    Jiang, S., Davidovic, D., Reich, D.H., Chien, C.L.: Phys. Rev. Lett. 74, 314 (1995) ADSCrossRefGoogle Scholar
  8. 8.
    Fisher, E., Barber, M.N.: Phys. Rev. Lett. 28, 1516 (1972) ADSCrossRefGoogle Scholar
  9. 9.
    Kim, J., Kwon, J.H., Char, K., Doh, H., Choi, H.-Y.: Phys. Rev. B 72, 014518 (2005) ADSCrossRefGoogle Scholar
  10. 10.
    Ruotolo, et al.: J. Appl. Phys. 96, 512 (2004) ADSCrossRefGoogle Scholar
  11. 11.
    Khaydukov, Yu.N., Nikitenko, Yu.V., Bottyan, L., Rühm, A., Aksenov, V.L.: Crystallogr. Rep. 55, 1235 (2010) ADSCrossRefGoogle Scholar
  12. 12.
  13. 13.
    Rusanov, A., Boogaard, R., Hesselberth, M., Sellier, H., Aarts, J.: J. Phys. C 369, 300 (2002) CrossRefGoogle Scholar
  14. 14.
    Westerholt, K., Sprungmann, D., Zabel, H., et al.: Phys. Rev. Lett. 95, 097003 (2005) ADSCrossRefGoogle Scholar
  15. 15.
    Bergeret, S., Volkov, A.F., Efetov, K.B.: Phys. Rev. Lett. 86, 3140 (2001) ADSCrossRefGoogle Scholar
  16. 16.
    Oboznov, A., Bol’ginov, V.V., Feofanov, A.K., Ryazanov, V.V., Buzdin, A.I.: Phys. Rev. Lett. 96, 197003 (2006) ADSCrossRefGoogle Scholar
  17. 17.
    Cretinon, L., Gupta, A.K., Sellier, H., Lefloch, F., Fauré, M., Buzdin, A., Courtois, H.: Phys. Rev. B 72, 024511 (2005) ADSCrossRefGoogle Scholar
  18. 18.
    Mühge, Th., Garif’yanov, N.N., Goryunov, Yu.V., Khaliullin, G.G., Tagirov, L.R., Westerholt, K., Garifullin, I.A., Zabel, H.: Phys. Rev. Lett. 77, 1857 (1996) ADSCrossRefGoogle Scholar
  19. 19.
    Kontos, T., Aprili, M., Lesueur, J., Grison, X.: Phys. Rev. Lett. 86, 304 (2001) ADSCrossRefGoogle Scholar
  20. 20.
    Alija, A., Pérez de Lara, D., Gonzalez, E.M., Kakazei, G.N., Sousa, J.B., Araujo, J.P., Hierro-Rodriguez, A., Martín, J.I., Alameda, J.M., Vélez, M., Vicent, J.L.: Phys. Rev. B 82, 184529 (2010) ADSCrossRefGoogle Scholar
  21. 21.
    Mancusi, D., Ilyina, E.A., Kushnir, V.N., Prischepa, S.L., Cirillo, C., Attanasio, C.: J. Appl. Phys. 110, 113904 (2011) ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • B. Nagy
    • 1
  • Y. N. Khaydukov
    • 2
    • 3
    • 4
  • L. F. Kiss
    • 1
  • S. Sajti
    • 1
  • D. G. Merkel
    • 1
  • F. Tanczikó
    • 1
  • A. S. Vasenko
    • 5
  • R. O. Tsaregorodsev
    • 6
  • A. Rühm
    • 3
    • 7
  • T. Keller
    • 2
    • 3
  • L. Bottyán
    • 1
  1. 1.Wigner Research Centre for PhysicsHungarian Academy of SciencesBudapestHungary
  2. 2.Max-Planck Institute for Solid State ResearchStuttgartGermany
  3. 3.Forschungs-Neutronenquelle Heinz Maier-LeibnitzTechnische Universität MünchenMunichGermany
  4. 4.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia
  5. 5.Institut Laue-LangevinGrenobleFrance
  6. 6.Faculty of PhysicsMoscow State UniversityMoscowRussia
  7. 7.Max-Planck Institute for Intelligent SystemsStuttgartGermany

Personalised recommendations