Skip to main content
SpringerLink
Log in

Tricritical phenomena in ferronematic liquid crystals

  • Theoretical and Mathematical Physics
  • Published:
Technical Physics Aims and scope Submit manuscript

Abstract

Orientational transitions induced by an external magnetic field in a ferronematic (a suspension of single-domain magnetic particles in a nematic liquid crystal) are considered in the framework of the continuum theory. The surface potential of the interaction between the ferronematic and the bounding plates is used taking into account the fourth-order anisotropy (the modified Rapini potential). It is shown that the ferronematic can be in one of three phases that correspond to three types of orientational ordering: homogeneous ordering, inhomogeneous ordering, and saturation state. The influence of the segregation effect of magnetic particles on the nature of orientational transitions of the ferronematic in an external field is studied. It is established that the transitions between these phases can be of the first and second order depending on the values of the anchoring parameters and the segregation parameter. Tricritical values of the parameter of anchoring anisotropy and the segregation parameter are determined.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. F. Brochard and P. G. de Gennes, J. Phys. (France) 31, 691 (1970).

    Article  Google Scholar 

  2. S. H. Chen and N. M. Amer, Phys. Rev. Lett. 51, 2298 (1983).

    Article  ADS  Google Scholar 

  3. B. J. Liang and S.-H. Chen, Phys. Rev. A 39, 1441 (1989).

    Article  ADS  Google Scholar 

  4. O. Buluy, E. Ouskova, Yu. Reznikov, A. Glushchenko, J. West, and V. Reshetnyak, Mol. Cryst. Liq. Cryst. 375, 81 (2002).

    Article  Google Scholar 

  5. S. V. Burylov and Yu. L. Raikher, Mol. Cryst. Liq. Cryst. 258, 107 (1995).

    Article  Google Scholar 

  6. V. I. Zadorozhnii, T. J. Sluckin, V. Yu. Reshetnyak, and K. S. Thomas, SIAM J. Appl. Math. 68, 1688 (2008).

    Article  MathSciNet  MATH  Google Scholar 

  7. D. V. Makarov and A. N. Zakhlevnykh, Phys. Rev. E 81, 051710 (2010).

    Article  ADS  Google Scholar 

  8. A. N. Zakhlevnykh and P. A. Sosnin, J. Magn. Magn. Mater. 146, 103 (1995).

    Article  ADS  Google Scholar 

  9. A. Zakhlevnykh and V. Shavkunov, Mol. Cryst. Liq. Cryst. 330, 593 (1999).

    Article  Google Scholar 

  10. A. N. Zakhlevnykh and V. S. Shavkunov, J. Magn. Magn. Mater. 210, 279 (2000).

    Article  ADS  Google Scholar 

  11. L. M. Blinov and V. G. Chigrinov, Electrooptic Effect in Liquid Crystal Materials (Springer, New York, 1994).

    Book  Google Scholar 

  12. A. Rapini and M. Papoular, J. Phys. Colloq. 30, C4–54 (1969).

    Article  Google Scholar 

  13. A. A. Sonin, The Surface Physics of Liquid Crystals (Gordon and Breach, Amsterdam, 1995).

    Google Scholar 

  14. J. Nehring, A. R. Kmetz, and T. J. Scheffer, J. Appl. Phys. 47, 850 (1976).

    Article  ADS  Google Scholar 

  15. K. H. Yang and C. Rosenblatt, Appl. Phys. Lett. 43, 62 (1983).

    Article  ADS  Google Scholar 

  16. H. Yakoyama and H. A. van Sprang, J. Appl. Phys. 57, 4520 (1985).

    Article  ADS  Google Scholar 

  17. G.-C. Yang, J.-R. Shj, and Y. Ling, Liq. Cryst. 27, 875 (2000).

    Article  Google Scholar 

  18. G.-C. Yang and S.-H. Zhang, Liq. Cryst. 29, 641 (2002).

    Article  Google Scholar 

  19. A. N. Zakhlevnykh and O. R. Semenova, Vestn. Permsk. Univ., Ser. Fiz., No. 1(17), 80 (2008).

  20. A. N. Zakhlevnykh and O. R. Semenova, Vestn. Permsk. Univ., Ser. Fiz., No. 1(27), 52 (2009).

  21. A. N. Zakhlevnykh and O. R. Semenova, Mol. Cryst. Liq. Cryst. 540, 219 (2011).

    Article  Google Scholar 

  22. G.-C. Yang, R.-H. Guan, and J. Huai, Liq. Cryst. 30, 1225 (2003).

    Article  Google Scholar 

  23. A. N. Zakhlevnykh, J. Magn. Magn. Mater. 269, 238 (2004).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Perm State University, Perm, 614990, Russia

    A. N. Zakhlevnykh & O. R. Semenova

Authors
  1. A. N. Zakhlevnykh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. O. R. Semenova
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. N. Zakhlevnykh.

Additional information

Original Russian Text © A.N. Zakhlevnykh, O.R. Semenova, 2012, published in Zhurnal Tekhnicheskoi Fiziki, 2012, Vol. 82, No. 8, pp. 1–10.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zakhlevnykh, A.N., Semenova, O.R. Tricritical phenomena in ferronematic liquid crystals. Tech. Phys. 57, 1041–1050 (2012). https://doi.org/10.1134/S1063784212080245

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063784212080245

Keywords

Search

Navigation