Skip to main content Accessibility help
×
Home

Polar-Toroidal Phase Transformation in Inhomogeneous Nanoscale Ferroelectric Systems: A Novel Strategy for the Design of Energy Conversion Nanodevices

  • Weijin Chen (a1), Shuai Yuan (a1), Ye Ji (a1), Gelei Jiang (a1), Jian Shao (a1) and Yue Zheng (a1)...

Abstract

The ordering of polarization field of inhomogeneous ferroelectric systems were investigated. We found that these systems exhibit rather complex polarization ordering behaviors with the coexistence of polar and toroidal ordering, and particularly, a novel and tunable polar-toroidal phase transformation under external mechanical, electrical or thermal fields. Accompanying with this polar-toroidal phase transformation, there is a large change of polarization and strain. As a result, large eletromechanical and thermomechanical performance can be achieved in these systems. The polar/toroidal phase boundaries can be regarded a new kind of morphotropic phase boundary (MPB). The polar-toroidal phase transformation in nanoscale ferroelectric systems should provide us a novel strategy to develop energy conversion nanodevices.

Copyright

Corresponding author

*Corresponding author: zhengy35@mail.sysu.edu.cn

References

Hide All
1. Ramer, N. J. and Rappe, A. M., Phys. Rev. B 62, R743R746 (2000).
2. Kutnjak, Z., Petzelt, J., and Blinc, R., Nature 441, 956959 (2006).
3. Zeches, R. J., Rossell, M. D., Zhang, J. X., Hatt, A. J., He, Q., et al., Science 326, 977980 (2009).
4. Fu, X., Naumov, I., and Fu, H., Nano Lett. 13, 491496 (2012).
5. Chen, W. J., Zheng, Y., and Wang, B., Sci. Rep. 5, 11165 (2015).
6. Walizer, L., Lisenkov, S., and Bellaiche, L., Phys. Rev. B 73, 144105 (2006).
7. Zhong, W., Vanderbilt, D., and Rabe, K. M., Phys. Rev. B 52, 63016312 (1995).
8. Ponomareva, I., Naumov, I. I., Kornev, I., Fu, H., and Bellaiche, L., Phys. Rev. B 72, 140102R (2005).
9. Chen, W. J., Zheng, Y., Wang, B., and Liu, J. Y., J. Appl. Phys. 115, 214106 (2014).

Keywords

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed