Journal of Superconductivity and Novel Magnetism

, Volume 30, Issue 4, pp 1103–1108 | Cite as

From an Anomalous Peak Effect to a Second Magnetization Peak in Nb-rich Nb-Ti Alloys

  • A. M. Ionescu
  • I. Ivan
  • M. Enculescu
  • M. Grigoroscuta
  • D. Miu
  • M. Valeanu
  • P. Badica
  • L. Miu
Original Paper


We investigated the evolution of the DC magnetic hysteresis curves of Nb 0.89Ti 0.11 alloys thermo-mechanically processed by intermediate heat treatments at 900 C in vacuum and cold rolling (∼ 50 % thickness reduction). Starting with a rectangular piece (∼ 0.4 mm thick) cut from the as-grown alloy, after the first thermo-mechanical treatment, the specimen exhibits over a wide temperature T interval a peak effect not far from the DC irreversibility line. With a supplemental thermo-mechanical treatment, the peak effect disappears and is substituted by a second magnetization peak (where the characteristic fields are significantly lower) induced by pinning enhancement. The second magnetization peak was clearly seen at high temperatures only, due to the occurrence of thermo-magnetic instabilities in the low-T domain. In both cases, analysis of magnetic relaxation evidences a crossover towards plastic vortex creep accompanying the maximum in the effective critical current density. These results suggest a common nature of the observed effects, related to the disordering of the vortex system induced by pinning.


Nb-rich Nb-Ti alloys DC magnetic measurements Peak effect Second magnetization peak Pinning-induced vortex system disordering 



Work supported by UEFISCDI, Romania, under Core Programs PN16-480101 and PN16-470104.


  1. 1.
    De Sorbo, W.: Rev. Mod. Phys. 36, 90 (1964)ADSCrossRefGoogle Scholar
  2. 2.
    Pippard, A.B.: Philos. Mag. 19, 217 (1969)ADSCrossRefGoogle Scholar
  3. 3.
    Larkin, A.I., Ovchinnikov Yu, N.: J. Low. Temp. Phys. 93, 409 (1979)ADSCrossRefGoogle Scholar
  4. 4.
    Bhattacharya, S., Higgins, M.J.: Phys. Rev. Lett. 70, 2617 (1993)ADSCrossRefGoogle Scholar
  5. 5.
    Matsushita, T.: Flux Pinning in Superconductors (Springer-Verlag Berlin Heidelberg) (2007)Google Scholar
  6. 6.
    Troyanovski, A.M., van Hecke, M., Saha, N., Aarts, J., Kes, P.H.: Phys. Rev. Lett. 89, 147006 (2002)ADSCrossRefGoogle Scholar
  7. 7.
    Fasano, Y., Menghini, M., de la Cruz, F., Paltiel, Y., Myasoedov, Y., Zeldov, E., Higgins, M.J., Bhattacharya, S.: Phys. Rev. B 66, 020512 (2002)ADSCrossRefGoogle Scholar
  8. 8.
    Dimitrov, I.K., Daniilidis, N.D., Elbaum, C., Lynn, J.W., Ling, X.S.: Phys. Rev. Lett. 99, 047001 (2007)ADSCrossRefGoogle Scholar
  9. 9.
    Lortz, R., Musolino, N., Wang, Y., Junod, A., Toyota, N.: Phys. Rev. B 75, 094503 (2007)ADSCrossRefGoogle Scholar
  10. 10.
    Nishizaki, T., Naito, T., Kobayashi, N.: Phys. Rev. B 58, 11169 (1998)ADSCrossRefGoogle Scholar
  11. 11.
    Park, S.R., Choi, S.M., Dender, D.C., Lynn, J.W., Ling, X.S.: Phys. Rev. Lett. 91, 167003 (2003)ADSCrossRefGoogle Scholar
  12. 12.
    Blatter, G., Feigel’man, V.M., Geshkenbein, V.B., Larkin, A.I., Vinokur, V.M.: Rev. Mod. Phys. 66, 1125 (1994). and references thereinADSCrossRefGoogle Scholar
  13. 13.
    Däumling, M., Seuntjens, J.M., Larbalestier, D.C.: Nature (London) 346, 332 (1990)ADSCrossRefGoogle Scholar
  14. 14.
    Sun, Y., Pyon, S., Tamegai, T., Kobayashi, R., Watashige, T., Kasahara, S., Matsuda, Y., Shibauchi, T.: Phys. Rev. B 92, 144509 (2015)ADSCrossRefGoogle Scholar
  15. 15.
    Zhou, W., Xing, X., Wu, W., Zhao, H., Shi, Z.: Sci. Rep. 6, 22278 (2016)ADSCrossRefGoogle Scholar
  16. 16.
    Tao, J., Deng, Q., Yang, H., Wang, Z., Zhu, X., Wen, H.H.: Phys. Rev. B 91, 214516 (2015)ADSCrossRefGoogle Scholar
  17. 17.
    Wu, Z.F., Wang, Z.H., Tao, J., Qiu, L., Yang, S.G., Wen, H.H.: Supercond. Sci. Technol. 29, 035006 (2016)ADSCrossRefGoogle Scholar
  18. 18.
    Krusin-Elbaum, L., Civale, L., Vinokur, V.M., Holtzberg, F.: Phys. Rev. Lett. 69, 2280 (1992)ADSCrossRefGoogle Scholar
  19. 19.
    Feigel’man, M.V., Geshkenbein, V.B., Larkin, A.I., Vinokur, V.M.: Phys. Rev. Lett. 63, 2303 (1989)ADSCrossRefGoogle Scholar
  20. 20.
    Miu, D., Noji, T., Adachi, T., Koike, Y., Miu, L.: Supercond. Sci. Technol. 25, 115009 (2012)ADSCrossRefGoogle Scholar
  21. 21.
    Zehetmayer, M.: Sci. Rep. 5, 9244 (2015)ADSCrossRefGoogle Scholar
  22. 22.
    Bhoi, D., Mandal, P., Choudhury, P.: J. Appl. Phys. 113, 183902 (2013)ADSCrossRefGoogle Scholar
  23. 23.
    Miu, L., Tanabe, Y., Adachi, T., Koike, Y., Miu, D., Jakob, G., Adrian, H.: Phys. Rev. B 78, 024520 (2008)ADSCrossRefGoogle Scholar
  24. 24.
    Nattermann, T.: Phys. Rev. Lett. 64, 2454 (1990)ADSCrossRefGoogle Scholar
  25. 25.
    Giamarchi, T., Le, D.P.: Phys. Rev. B 55, 6577 (1997)ADSCrossRefGoogle Scholar
  26. 26.
    Abulafia, Y., Shaulov, A., Wolfus, Y., Prozorov, R., Burlachkov, L., Yeshurun, Y., Majer, D., Zeldov, E., Wühl, H., Geshkenbein, V.B., Vinokur, V.M.: Phys. Rev. Lett. 77, 1596 (1996)ADSCrossRefGoogle Scholar
  27. 27.
    Küpfer, H., Wolf, T., Lessing, C., Zhukov, A.A., Lançon, X., Maier-Hirmer, R., Schauer, W., Wühl, H.: Phys. Rev. B 58, 2886 (1998)ADSCrossRefGoogle Scholar
  28. 28.
    Miu, L., Noji, T., Koike, Y., Cimpoiasu, E., Stein, T., Almasan, C.C.: Phys. Rev. B 62, 15172 (2000)ADSCrossRefGoogle Scholar
  29. 29.
    Miu, L., Miu, D.: Supercond. Sci. Technol. 23, 025003 (2010)ADSCrossRefGoogle Scholar
  30. 30.
    Kopelevich, Y., Esquinazi, P.: Solid. State Commun. 122, 33 (2002)ADSCrossRefGoogle Scholar
  31. 31.
    Kopelevich, Y., Esquinazi, P.: J. Low Temp. Phys. 113, 1 (1998)ADSCrossRefGoogle Scholar
  32. 32.
    Stamopoulos, D., Speliotis, A., Niarchos, D.: Supercond. Sci. Technol. 17, 1261 (2004)ADSCrossRefGoogle Scholar
  33. 33.
    Miu, L.: J. Mat. Sci. Lett. 5, 703 (1986)CrossRefGoogle Scholar
  34. 34.
    Larbalestier, D.C., West, A.W.: Acta Metall. 32, 1871 (1984)CrossRefGoogle Scholar
  35. 35.
    Gyorgy, E.M., van Dover, R.B., Jackson, K.A., Schneemeyer, L.F., Waszczak, J.V.: Appl. Phys. Lett. 55, 283 (1989)ADSCrossRefGoogle Scholar
  36. 36.
    Yeshurun, Y., Malozemoff, A.P., Shaulov, A.: Rev. Mod. Phys. 68, 911 (1996)ADSCrossRefGoogle Scholar
  37. 37.
    Geshkenbein, V.B., Larkin, A.I.: Sov. Phys. JETP 68, 639 (1989)Google Scholar
  38. 38.
    Malozemoff, A.P.: Phys. C 185, 264 (1991)ADSCrossRefGoogle Scholar
  39. 39.
    Miu, L., Ionescu, A.M., Ivan, I., Miu, D., Adachi, T., Omori, K., Koike, Y.: Phys. C 519, 79 (2015)ADSCrossRefGoogle Scholar
  40. 40.
    Miu, L.: Phys. Rev. B 85, 104519 (2012)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.National Institute of Materials PhysicsBucharest-MagureleRomania
  2. 2.Faculty of PhysicsUniversity of BucharestBucharest-MagureleRomania
  3. 3.National Institute of Laser, Plasma, and Radiation PhysicsBucharest-MagureleRomania

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