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Critical magnetic field of the vortex-free state in NbC thin films and prospects for its observation in MgB2

  • Metals and Superconductors
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Abstract

The critical magnetic fields H c‖ and H c2 are measured for thin films of the isotropic superconductor NbC. It is revealed that the critical fields exhibit strong anisotropy due to the vortex-free state of the film in a magnetic field aligned parallel to its surface. The H c‖/H c2 ratio at 2 K exceeds 6 and increases with increasing temperature. The dependence H c‖(T) agrees quantitatively with the concepts of microscopic theory on the vortex-free state of a thin film of a clean superconductor in the temperature range below T c . As the electron mean free path decreases under irradiation of the film with a low dose of He+ ions, the critical field H c‖ remains unchanged near T c but increases significantly at lower temperatures. The well-known theoretical models are used to estimate the electronic parameters and thicknesses of MgB2 films for which the specific features associated with the vortex-free state of the two-gap superconductor can manifest themselves in the temperature dependence of the critical magnetic field H c‖(T).

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References

  1. Yu. F. Komnik, Physics of Metallic Films: Dimensional and Structural Effects (Atomizdat, Moscow, 1979) [in Russian].

    Google Scholar 

  2. D. Saint-James and P. G. de Gennes, Phys. Lett. 7, 306 (1963).

    Article  ADS  Google Scholar 

  3. A. A. Abrikosov, Zh. Éksp. Teor. Fiz. 47, 720 (1964) [Sov. Phys. JETP 20, 480 (1964)].

    Google Scholar 

  4. R. S. Thompson and A. Baratoff, Phys. Rev. Lett. 15, 971 (1965).

    Article  ADS  Google Scholar 

  5. E. A. Shapoval, Zh. Éksp. Teor. Fiz. 49, 930 (1965) [Sov. Phys. JETP 22, 647 (1965)].

    Google Scholar 

  6. E. A. Shapoval, Zh. Éksp. Teor. Fiz. 51(2), 669 (1966) [Sov. Phys. JETP 24 (2), 443 (1966)].

    Google Scholar 

  7. G. D. Cody and R. E. Miller, Phys. Rev. 173, 481 (1968).

    Article  ADS  Google Scholar 

  8. R. E. Miller and G. D. Cody, Phys. Rev. 173, 494 (1968).

    Article  ADS  Google Scholar 

  9. A. M. Toxen, Phys. Rev. 123, 442 (1961).

    Article  ADS  Google Scholar 

  10. G. J. Dolan, J. Low Temp. Phys. 15, 133 (1974).

    Article  ADS  Google Scholar 

  11. J. P. Burger, G. Deutscher, E. Guyon, and A. Martinet, Phys. Rev. [Sect] A 137, 853 (1965).

    Article  ADS  Google Scholar 

  12. H. J. Fink, Phys. Rev. 177, 732 (1969).

    Article  ADS  Google Scholar 

  13. M. N. Mikheeva and E. A. Shapoval, Zh. Éksp. Teor. Fiz. 55(3), 1059 (1968) [Sov. Phys. JETP 28 (3), 551 (1968)].

    Google Scholar 

  14. M. Tinkham, Phys. Rev. 129, 2413 (1963).

    Article  ADS  Google Scholar 

  15. A. I. Golovashkin, B. G. Zhurkin, A. L. Karuzskiĭ, S. I. Krasnosvobodtsev, V. P. Martovitskiĭ, E. V. Pechen’, V. V. Rodin, Yu. I. Stepanov, and A. V. Shirkov, Fiz. Tverd. Tela (Leningrad) 28(11), 3342 (1986) [Sov. Phys. Solid State 28 (11), 1881 (1986)].

    Google Scholar 

  16. N. P. Shabanova, S. I. Krasnosvobodtsev, V. S. Nozdrin, and A. I. Golovashkin, Fiz. Tverd. Tela (St. Petersburg) 38(11), 1969 (1996) [Phys. Solid State 38 (11), 1918 (1996)].

    Google Scholar 

  17. L. P. Gor’kov, Zh. Éksp. Teor. Fiz. 37, 1407 (1959) [Sov. Phys. JETP 10, 998 (1959)].

    MathSciNet  Google Scholar 

  18. N. R. Werthamer, in Superconductivity, Ed. by R. D. Parks (Dekker Marcel, New York, 1969), Vol. 1, p. 321.

    Google Scholar 

  19. A. Y. Liu, I. I. Mazin, and J. Kortus, Phys. Rev. Lett. 87, 087005 (2001).

    Google Scholar 

  20. P. Szabo, P. Samueli, J. Kacharcik, T. Klein, J. Marcus, D. Fruchardt, S. Miraglia, C. Marcenat, and A. G. M. Jansen, Phys. Rev. Lett. 87, 137005 (2001).

    Google Scholar 

  21. H. Schmidt, J. F. Zasadzinski, K. E. Gray, and D. G. Hinks, Physica C (Amsterdam) 385, 221 (2003).

    ADS  Google Scholar 

  22. Ya. G. Ponomarev, S. A. Kuzmichev, M. G. Mikheev, M. V. Sudakova, S. N. Tchesnokov, N. Z. Timergaleev, A. V. Yarigin, E. G. Maksimov, S. I. Krasnosvobodtsev, A. V. Varlashkin, M. A. Hein, G. Müller, H. Piel, L. G. Sevastyanova, O. V. Kravchenko, K. P. Burdina, and B. M. Bulychev, Solid State Commun. 129, 85 (2004).

    Article  ADS  Google Scholar 

  23. A. Brinkman, A. A. Golubov, H. Rogalla, O. V. Dolgov, J. Kortus, Y. Kong, O. Jepsen, and O. K. Andersen, Phys. Rev. B: Condens. Matter 65, 180517 (2002).

    Google Scholar 

  24. M. R. Eskildsen, M. Kugler, S. Tanaka, J. Jun, S. M. Kazakov, J. Karpinski, and O. Fischer, Phys. Rev. Lett. 89, 187003 (2002).

    Google Scholar 

  25. F. Bouquet, Y. Wang, I. Sheikin, T. Plackowski, A. Junod, S. Lee, and S. Tajima, Phys. Rev. Lett. 89, 257001 (2002).

    Google Scholar 

  26. A. Gurevich, S. Patnaik, V. Braccini, K. H. Kim, C. Mielke, X. Song, L. D. Cooley, S. D. Bu, D. M. Kim, J. H. Choi, L. J. Belenky, J. Giencke, M. K. Lee, W. Tian, X. Q. Pan, A. Siri, E. E. Hellstrom, C. B. Eom, and D. C. Larbalestier, Supercond. Sci. Technol. 17, 278 (2004).

    Article  ADS  Google Scholar 

  27. V. Braccini, A. Gurevich, J. E. Ciencke, M. C. Jewell, C. B. Eom, D. C. Larbalestier, A. Pogrebnyakov, Y. Cui, B. T. Liu, Y. F. Hu, J. M. Redwing, Qi Li, X. X. Xi, R. K. Singh, R. Gandikota, J. Kim, B. Wilkens, N. Newman, J. Rowell, B. Moeckly, V. Ferrando, C. Tarantini, D. Marré, M. Putti, C. Ferdeghini, R. Vaglio, and E. Haanappel, Phys. Rev. B: Condens. Matter 71, 012504 (2005).

  28. I. I. Mazin and V. P. Antropov, Physica C (Amsterdam) 385, 49 (2003).

    ADS  Google Scholar 

  29. S. I. Krasnosvobodtsev, A. V. Varlashkin, A. I. Golovashkin, and N. P. Shabanova, Fiz. Tverd. Tela (St. Petersburg) 47(9), 1541 (2005) [Phys. Solid State 47 (9), 1600 (2005)].

    Google Scholar 

  30. R. Ma, Y. Bando, T. Mori, and D. Golberg, Chem. Mater. 15, 3194 (2003).

    Article  Google Scholar 

  31. Q. Yang, J. Sha, X. Ma, Y. Ji, and D. Yang, Supercond. Sci. Technol. 17, L31 (2004).

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskiĭ pr. 53, Moscow, 119991, Russia

    N. P. Shabanova, S. I. Krasnosvobodtsev, A. V. Varlashkin & A. I. Golovashkin

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  1. N. P. Shabanova
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  2. S. I. Krasnosvobodtsev
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  3. A. V. Varlashkin
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  4. A. I. Golovashkin
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Original Russian Text © N.P. Shabanova, S.I. Krasnosvobodtsev, A.V. Varlashkin, A.I. Golovashkin, 2007, published in Fizika Tverdogo Tela, 2007, Vol. 49, No. 6, pp. 990–995.

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Shabanova, N.P., Krasnosvobodtsev, S.I., Varlashkin, A.V. et al. Critical magnetic field of the vortex-free state in NbC thin films and prospects for its observation in MgB2 . Phys. Solid State 49, 1040–1045 (2007). https://doi.org/10.1134/S1063783407060030

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  • DOI: https://doi.org/10.1134/S1063783407060030

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