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Electric field effect on short-range polar order in a relaxor ferroelectric system

Journal Article


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Abstract


  • Short-range polar order in the relaxor ferroelectric material PbMg1/3Nb2/3O3-28%PbTiO3 (PMN-28PT) have been studied using neutron diffuse scattering. An external electric field along the [110] direction can affect the diffuse scattering in the low temperature rhombohedral/monoclinic phase. Diffuse scattering intensities associated with [110] short-range polarizations are partially suppressed, while those arising from [110] polarizations are enhanced. On the other hand, short-range polar order along other equivalent (110) directions, i.e., [101], [101], [011], and [011] directions, are virtually unaffected by the field. Our results, combined with previous work, strongly suggest that most parts of short-range polar order in PMN-xPT relaxor systems are robust in the low temperature phase, where they couple strongly to ferroelectric polarizations of the surrounding ferroelectric domains, and would only respond to an external field indirectly through ferroelectric domain rotation.

UOW Authors


  •   Xu, Zhijun (external author)
  •   Li, Fei (external author)
  •   Zhang, Shujun
  •   Stock, Christopher (external author)
  •   Luo, Jun (external author)
  •   Gehring, Peter (external author)
  •   Xu, Guangyong (external author)

Publication Date


  • 2019

Citation


  • Xu, Z., Li, F., Zhang, S., Stock, C., Luo, J., Gehring, P. M. & Xu, G. (2019). Electric field effect on short-range polar order in a relaxor ferroelectric system. Physical Review B: Covering condensed matter and materials physics, 100 (2), 024113-1-024113-5.

Scopus Eid


  • 2-s2.0-85073642806

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4914&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3859

Start Page


  • 024113-1

End Page


  • 024113-5

Volume


  • 100

Issue


  • 2

Place Of Publication


  • United States

Abstract


  • Short-range polar order in the relaxor ferroelectric material PbMg1/3Nb2/3O3-28%PbTiO3 (PMN-28PT) have been studied using neutron diffuse scattering. An external electric field along the [110] direction can affect the diffuse scattering in the low temperature rhombohedral/monoclinic phase. Diffuse scattering intensities associated with [110] short-range polarizations are partially suppressed, while those arising from [110] polarizations are enhanced. On the other hand, short-range polar order along other equivalent (110) directions, i.e., [101], [101], [011], and [011] directions, are virtually unaffected by the field. Our results, combined with previous work, strongly suggest that most parts of short-range polar order in PMN-xPT relaxor systems are robust in the low temperature phase, where they couple strongly to ferroelectric polarizations of the surrounding ferroelectric domains, and would only respond to an external field indirectly through ferroelectric domain rotation.

UOW Authors


  •   Xu, Zhijun (external author)
  •   Li, Fei (external author)
  •   Zhang, Shujun
  •   Stock, Christopher (external author)
  •   Luo, Jun (external author)
  •   Gehring, Peter (external author)
  •   Xu, Guangyong (external author)

Publication Date


  • 2019

Citation


  • Xu, Z., Li, F., Zhang, S., Stock, C., Luo, J., Gehring, P. M. & Xu, G. (2019). Electric field effect on short-range polar order in a relaxor ferroelectric system. Physical Review B: Covering condensed matter and materials physics, 100 (2), 024113-1-024113-5.

Scopus Eid


  • 2-s2.0-85073642806

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4914&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3859

Start Page


  • 024113-1

End Page


  • 024113-5

Volume


  • 100

Issue


  • 2

Place Of Publication


  • United States