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Reversal asymmetry and anomalous magnetic viscosity in exchange-bias systems

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Abstract

Employing vector magnetometry, interaction plots and model simulations, we probe the magnetization reversal in Co/Cu/IrMn exchange-biased trilayers. In the films with thin or no Cu spacer, the magnetization reversal is governed by domain-wall motion along one branch of the easy-axis hysteresis loop and by coherent rotation along the other. For thicker Cu spacers, both magnetization paths are dominated by coherent rotation. The latter also appears to be responsible for the reversal when the magnetic field is applied away from the exchange-bias direction for all films. We reveal a delayed domain-wall reversal along the descending-field path as compared to that predicted for coherent rotation. By exploiting in-field interaction plots, we evidenced a correlation between the asymmetric reversal and the exchange-bias coupling. Anomalous viscosity along recoil curves is detected and attributed to strong ferromagnetic coupling into the ferromagnet. The anomaly tends to fade away with the increase in the bias.

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References

  1. W.H. Meiklejohn, C.P. Bean, Phys. Rev. 102, 1413 (1956). ibid. 105, 904 (1957)

    ADS  Google Scholar 

  2. A.E. Berkowitz, K. Takano, J. Magn. Magn. Mater. 200, 552 (1999)

    ADS  Google Scholar 

  3. J. Nogués, I.K. Schuller, J. Magn. Magn. Mater. 192, 203 (1999)

    ADS  Google Scholar 

  4. C. Leighton, M. Song, J. Nogués, M.C. Cyrille, I.K. Schuller, J. Appl. Phys. 88, 344 (2000)

    ADS  Google Scholar 

  5. M.R. Fitzsimmons, P. Yashar, C. Leighton, I.K. Schuller, J. Nogués, C.F. Majkrzak, J.A. Dura, Phys. Rev. Lett. 84, 3986 (2000)

    ADS  Google Scholar 

  6. C. Leighton, M.R. Fitzsimmons, P. Yashar, A. Hoffmann, J. Nogués, J. Dura, C.F. Majkrzak, I.K. Schuller, Phys. Rev. Lett. 86, 4394 (2001)

    ADS  Google Scholar 

  7. M. Gierlings, M.J. Prandolini, H. Fritzsche, M. Gruyters, D. Riegel, Phys. Rev. B 65, 092407 (2002)

    ADS  Google Scholar 

  8. J. McCord, R. Schäfer, R. Mattheis, K.-U. Barholz, J. Appl. Phys. 93, 5491 (2003)

    ADS  Google Scholar 

  9. J. Camarero, J. Sort, A. Hoffmann, J.M. García-Martín, B. Dieny, R. Miranda, J. Nogués, Phys. Rev. Lett. 95, 057204 (2005)

    ADS  Google Scholar 

  10. D. Paccard, C. Schlenker, O. Massenet, R. Montmory, A. Yelon, Phys. Status Solidi B 16, 301 (1966)

    ADS  Google Scholar 

  11. A.G. Biternas, U. Nowak, R.W. Chantrell, Phys. Rev. B 80, 134419 (2009)

    ADS  Google Scholar 

  12. L.E. Fernandez-Outon, G. Vallejo-Fernandez, S. Manzoor, K. O’Grady, J. Magn. Magn. Mater. 303, 296 (2006)

    ADS  Google Scholar 

  13. A. Hoffmann, Phys. Rev. Lett. 93, 097203 (2004)

    ADS  Google Scholar 

  14. A. Harres, J. Geshev, J. Phys.: Condens. Matter 23, 216003 (2011)

    ADS  Google Scholar 

  15. F. Radu, M. Etzkorn, T. Schmitte, R. Siebrecht, A. Schreyer, K. Westerholt, H. Zabel, J. Magn. Magn. Mater. 240, 251 (2002)

    ADS  Google Scholar 

  16. C. Fleischmann, F. Almeida, J. Demeter, K. Paredis, A. Teichert, R. Steitz, S. Brems, B. Opperdoes, C. Van Haesendonck, A. Vantomme, K. Temst, J. Appl. Phys. 107, 113907 (2010)

    ADS  Google Scholar 

  17. E. Pina, C. Prados, A. Hernando, Phys. Rev. B 69, 052402 (2004)

    ADS  Google Scholar 

  18. T. Mewes, H. Nembach, M. Rickart, S.O. Demokritov, J. Fassbender, B. Hillebrands, Phys. Rev. B 65, 224423 (2002)

    ADS  Google Scholar 

  19. M.S. Lund, C. Leighton, Phys. Rev. B 76, 104433 (2007)

    ADS  Google Scholar 

  20. A. Kirilyuk, Th Rasing, H. Jaffrès, D. Lacour, F. Nguyen Van Dau, J. Appl. Phys. 91, 7745 (2002)

    ADS  Google Scholar 

  21. P. Gogol, J.N. Chapman, M.F. Gillies, F.W.M. Vanhelmont, J. Appl. Phys. 92, 1458 (2002)

    ADS  Google Scholar 

  22. B. Beckmann, U. Nowak, K.D. Usadel, Phys. Rev. Lett. 91, 187201 (2003)

    ADS  Google Scholar 

  23. F. Radu, M. Etzkorn, R. Siebrecht, T. Schmitte, K. Westerholt, H. Zabel, Phys. Rev. B 67, 134409 (2003)

    ADS  Google Scholar 

  24. Z.-P. Li, O. Petracic, R. Morales, J. Olamit, X. Batlle, K. Liu, I.K. Schuller, Phys. Rev. Lett. 96, 217205 (2006)

    ADS  Google Scholar 

  25. A. Fassatoui, R. Belhi, J. Vogel, S. Pizzini, P. David, K. Abdelmoula, J. Magn. Magn. Mater. 449, 475 (2018)

    ADS  Google Scholar 

  26. R. Wu, J.Z. Wei, X.L. Peng, J.B. Fu, S.Q. Liu, Y. Zhang, Y.H. Xia, C.S. Wang, Y.C. Yang, J.B. Yang, Appl. Phys. Lett. 104, 182403 (2014)

    ADS  Google Scholar 

  27. H.-L. Liu, S. Brems, Y.-J. Zeng, K. Temst, A. Vantomme, C. Van Haesendonck, J. Phys.: Condens. Matter 28, 196002 (2016)

    ADS  Google Scholar 

  28. H. Fulara, S. Chaudhary, S.C. Kashyap, J. Appl. Phys. 113, 043914 (2013)

    ADS  Google Scholar 

  29. H. Fulara, S. Chaudhary, S.C. Kashyap, Appl. Phys. Lett. 103, 052405 (2013)

    ADS  Google Scholar 

  30. M. Rivas, J.A. García, M. Tejedor, E. Bertrán, J.G. Céspedes, J. Appl. Phys. 97, 023903 (2005)

    ADS  Google Scholar 

  31. Z.-P. Li, J. Eisenmenger, C.W. Miller, I.K. Schuller, Phys. Rev. Lett. 96, 137201 (2006)

    ADS  Google Scholar 

  32. S.J. Collocott, J.B. Dunlop, Phys. Rev. B 66, 224420 (2002)

    ADS  Google Scholar 

  33. A.M. Goodman, H. Laidler, K. O’Grady, N.W. Owen, A.K. Petford-Long, J. Appl. Phys. 87, 6409 (2000)

    ADS  Google Scholar 

  34. C. Leighton, I.K. Schuller, J. Appl. Phys. 63, 174419 (2001)

    Google Scholar 

  35. A. Harres, R. Cichelero, L.G. Pereira, J.E. Schmidt, J. Geshev, J. Appl. Phys. 114, 043902 (2013)

    ADS  Google Scholar 

  36. J. Ben Youssef, V. Castel, K. Garello, N. Gargam, S. Pogossian, D. Spenato, D.T. Dekadjevi, A. Suvorova, T.R. Charlton, R.M. Dalgliesh, S. Langridge, Phys. Rev. B 76, 134401 (2007)

    ADS  Google Scholar 

  37. J. Chen, G. Jin, Y.-Q. Ma, J. Phys.: Condens. Matter 19, 236225 (2007)

    ADS  Google Scholar 

  38. A. Markou, A. Mourkas, A. Koume, I. Panagiotopoulos, L. Stoleriu, A. Stancu, J. Magn. Magn. Mater. 445, 95 (2018)

    ADS  Google Scholar 

  39. A. Harres, J. Geshev, J. Phys.: Condens. Matter 24, 326004 (2012)

    Google Scholar 

  40. O. Henkel, Phys. Status Solidi 7, 919 (1964)

    Google Scholar 

  41. P.E. Kelly, K. O’Grady, P.I. Mayo, R.W. Chantrell, IEEE Trans. Magn. 25, 3881 (1989)

    ADS  Google Scholar 

  42. P. Bissel, R. Chantrell, G. Tomka, J. Knowles, M. Sharrock, IEEE Trans. Magn. 25, 3650 (1989)

    ADS  Google Scholar 

  43. P.I. Mayo, K. O’Grady, R.W. Chantrell, J.A. Cambridge, I.L. Sanders, T. Yogi, J.K. Howard, J. Magn. Magn. Mater. 95, 109 (1991)

    ADS  Google Scholar 

  44. V. Masheva, J. Geshev, M. Mikhov, J. Magn. Magn. Mater. 137, 350 (1994)

    ADS  Google Scholar 

  45. S. Thamm, J. Hesse, J. Magn. Magn. Mater. 154, 254 (1996)

    ADS  Google Scholar 

  46. J. Geshev, J. Magn. Magn. Mater. 467, 135 (2018)

    ADS  Google Scholar 

  47. J. Geshev, L.L. Bianchi, R.F. Lopes, J.L. Salazar Cuaila, A. Harres, J. Magn. Magn. Mater. 497, 166061 (2020)

    Google Scholar 

  48. J. Geshev, R.F. Lopes, J.L. Salazar Cuaila, L.L. Bianchi, A. Harres, J. Magn. Magn. Mater. 500, 166420 (2020)

    Google Scholar 

  49. http://www.if.ufrgs.br/pes/lam/dMr.html

  50. J. Geshev, Appl. Phys. Lett. 93, 176101 (2008)

    ADS  Google Scholar 

  51. J. Geshev, L.G. Pereira, V. Skumryev, Phys. Rev. Lett. 100, 039701 (2008)

    ADS  Google Scholar 

  52. J. Geshev, J. Appl. Phys. 105, 066108 (2009)

    ADS  Google Scholar 

  53. J. Stöhr, H.C. Siegmann, Magnetism: From Fundamentals to Nanoscale Dynamics (Springer, Berlin, 2006), p. 629

    Google Scholar 

  54. M.G. Eilon, P.J. Thompson, D.S. Geoghegan, R. Street, J. Magn. Magn. Mater. 17, 249 (1997)

    ADS  Google Scholar 

  55. U.K. Rössler, K.-H. Müller, IEEE Trans. Magn. 36, 3202 (2000)

    ADS  Google Scholar 

Download references

Acknowledgements

The authors appreciate useful discussions with A. Harres. The research has been partly financed by the Brazilian agencies Conselho Nacional de Desenvolvimento Científico (CNPq, Grants 425359/2016-6, 305796/2016-0 and 150535/2019-8) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES—Finance Code 001).

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Authors and Affiliations

  1. Instituto de Física, UFRGS, Porto Alegre, Rio Grande do Sul, 91501-970, Brazil

    V. Z. C. Paes, R. F. Lopes & J. Geshev

  2. Instituto Federal Sul-rio-grandense, Câmpus Sapiranga, Sapiranga, Rio Grande do Sul, 93804-870, Brazil

    R. F. Lopes

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  1. V. Z. C. Paes
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Correspondence to J. Geshev.

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Paes, V.Z.C., Lopes, R.F. & Geshev, J. Reversal asymmetry and anomalous magnetic viscosity in exchange-bias systems. Eur. Phys. J. Plus 135, 714 (2020). https://doi.org/10.1140/epjp/s13360-020-00747-4

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