Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Article
  • Published:

Solitonic lattice and Yukawa forces in the rare-earth orthoferrite TbFeO3

Abstract

The random fluctuations of spins give rise to many interesting physical phenomena, such as the ‘order-from-disorder’ arising in frustrated magnets and unconventional Cooper pairing in magnetic superconductors. Here we show that the exchange of spin waves between extended topological defects, such as domain walls, can result in novel magnetic states. We report the discovery of an unusual incommensurate phase in the orthoferrite TbFeO3 using neutron diffraction under an applied magnetic field. The magnetic modulation has a very long period of 340 Å at 3 K and exhibits an anomalously large number of higher-order harmonics. These domain walls are formed by Ising-like Tb spins. They interact by exchanging magnons propagating through the Fe magnetic sublattice. The resulting force between the domain walls has a rather long range that determines the period of the incommensurate state and is analogous to the pion-mediated Yukawa interaction between protons and neutrons in nuclei.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1: Uniform magnetic phases of TbFeO3.
Figure 2: Single-crystal neutron diffraction data.
Figure 3: Magnetic phase diagram of TbFeO3.
Figure 4: Theoretical phase diagram and the structure of the IC state.
Figure 5: Topological defects in the coupled orders of Tb and Fe spins.

Similar content being viewed by others

References

  1. Belov, K. P., Zvezdin, A. K., Kadomtseva, A. M. & Levitin, R. Z. Spin-reorientation transitions in rare-earth magnets. Sov. Phys. Usp. 19, 574–596 (1976).

    Article  Google Scholar 

  2. Buchel’nikov, V. D., Dan’shin, N. K., Tsymbal, L. T. & Shavrov, V. G. Magnetoacoustics of rare-earth orthoferrites. Phys. Usp. 39, 547–572 (1996).

    Article  Google Scholar 

  3. Kimel, A. V. et al. Ultrafast non-thermal control of magnetization by instantaneous photomagnetic pulses. Nature 435, 655–657 (2005).

    Article  CAS  Google Scholar 

  4. Kimura, T. et al. Magnetic control of ferroelectric polarization. Nature 426, 55–58 (2003).

    Article  CAS  Google Scholar 

  5. Hur, N. et al. Electric polarization reversal and memory in a multiferroic material induced by magnetic fields. Nature 429, 392–395 (2004).

    Article  CAS  Google Scholar 

  6. Zvezdin, A. K. & Mukhin, A. A. Magnetoelectric interactions and phase transitions in a new class of multiferroics with improper electric polarization. JETP Lett. 88, 505–510 (2008).

    Article  CAS  Google Scholar 

  7. Tokunaga, Y. et al. Composite domain walls in a multiferroic perovskite ferrite. Nature Mater. 8, 558–562 (2009).

    Article  CAS  Google Scholar 

  8. Prokhnenko, O. et al. Coupling of frustrated ising spins to the magnetic cycloid in multiferroic TbMnO3 . Phys. Rev. Lett. 99, 177206 (2007).

    Article  CAS  Google Scholar 

  9. Aliouane, N. et al. Magnetic order and ferroelectricity in RMnO3 multiferroic manganites: Coupling between R- and Mn-spins. J. Phys. Condens. Matter 20, 434215 (2008).

    Article  Google Scholar 

  10. Tokunaga, Y., Iguchi, S., Arima, T. & Tokura, Y. Magnetic-field-induced ferroelectric state in DyFeO3 . Phys. Rev. Lett. 101, 097205 (2008).

    Article  CAS  Google Scholar 

  11. Bertaut, E. F. in Magnetism Vol. 3 (eds Rado, J. T. & Suhl, H.) 149–209 (Academic, 1963).

    Google Scholar 

  12. Bertaut, E. F., Chappert, J., Mareschal, J., Rebouillat, J. P. & Sivardière, J. Structures magnetiques de TbFeO3 . Solid State Commun. 5, 293–298 (1967).

    Article  CAS  Google Scholar 

  13. Bouree, J. E. & Hammann, J. Mise en évidence expérimentale des effets de forme dans l’orthoferrite de terbium. J. Phys. 36, 391–397 (1975).

    Article  CAS  Google Scholar 

  14. Belov, K. P., Zvezdin, A. K. & Mukhin, A. A. Magnetic phase transitions in terbium orthoferrite. Sov. Phys. JETP 49, 557–562 (1979).

    Google Scholar 

  15. Dzyaloshinskii, I. Theory of helical structures in antiferromagnets I: Nonmetals. Sov. Phys. JETP 19, 960–971 (1964).

    Google Scholar 

  16. Moriya, T. Anisotropic superexchange interaction and weak ferromagnetism. Phys. Rev. 120, 91–98 (1960).

    Article  CAS  Google Scholar 

  17. Bidaux, R., Bouree, J. E. & Hammann, J. Dipolar interactions in rare earth orthoferrites—II. J. Phys Chem. Solids 36, 655–659 (1975).

    Article  CAS  Google Scholar 

  18. Kemmer, N. Nature of the Nuclear Field. Nature 141, 116–117 (1938);http://www.nature.com/physics/looking-back/kemmer/index.html.

    Article  CAS  Google Scholar 

Download references

Acknowledgements

D.N.A. and S.L. thank the Deutsche Forschung Gemeinschaft for support under contract AR 613/2-1. The neutron scattering work was supported by the Danish National Research Council through DANSCATT. N.P.J. thanks J. B. Hansen, for support and guidance. M.M. was supported by the FOM grant 08.0952.

Author information

Authors and Affiliations

Authors

Contributions

D.N.A. initiated the project, D.N.A. and M.M. interpreted the results and wrote the paper, and M.M. and S.A. developed the theory. N.P.J. and H.N.B. contributed to the interpretation of the experimental results. K.L. and L.T.K. supported the project. Neutron experiments and analysis of these data were conducted by N.P.J., D.N.A., K.P., D.L., V.G.P. and H.N.B. Bulk property and characterization measurements were conducted by S.L., H.R., B.K., S.P. and K.K., and A.M. grew the single crystal. All authors commented on the manuscript.

Corresponding author

Correspondence to Dimitri N. Argyriou.

Ethics declarations

Competing interests

The authors declare no competing financial interests.

Supplementary information

Supplementary Information

Supplementary Information (PDF 1957 kb)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Artyukhin, S., Mostovoy, M., Jensen, N. et al. Solitonic lattice and Yukawa forces in the rare-earth orthoferrite TbFeO3. Nature Mater 11, 694–699 (2012). https://doi.org/10.1038/nmat3358

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nmat3358

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing