Ferroelectricity from spin supercurrents in LiCuVO4

M. Mourigal; M. Enderle; R. K. Kremer; J. M. Law; B. Fåk

doi:10.1103/PhysRevB.83.100409

Ferroelectricity from spin supercurrents in LiCuVO4

Strongly Correlated Electrons 2011-03-23 v1 Materials Science

Authors: M. Mourigal , M. Enderle , R. K. Kremer , J. M. Law , B. Fåk

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Abstract

We have studied the magnetic structure of the ferroelectric frustrated spin-1/2 chain material LiCuVO4 in applied electric and magnetic fields using polarized neutrons. A symmetry and mean-field analysis of the data rules out the presence of static Dzyaloshinskii-Moriya interaction, while exchange striction is shown to be negligible by our specific-heat measurements. The experimentally observed magnetoelectric coupling is in excellent agreement with the predictions of a purely electronic mechanism based on spin supercurrents.

Keywords

multiferroic frustrated magnetism perovskite magnetism

Cite

@article{arxiv.1103.4319,
  title  = {Ferroelectricity from spin supercurrents in LiCuVO4},
  author = {M. Mourigal and M. Enderle and R. K. Kremer and J. M. Law and B. Fåk},
  journal= {arXiv preprint arXiv:1103.4319},
  year   = {2011}
}

Comments

4 pages, 3 figures, final version

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