Hidden Symmetry and Mutiferroicity in a Triangular Spin Lattice With Proper-Screw-Spin Chain Order

E. J. Kan; H. J. Xiang; Y. Zhang; C. Lee; M. -H. Whangbo

Hidden Symmetry and Mutiferroicity in a Triangular Spin Lattice With Proper-Screw-Spin Chain Order

Materials Science 2009-03-18 v1 Other Condensed Matter

Authors: E. J. Kan , H. J. Xiang , Y. Zhang , C. Lee , M. -H. Whangbo

Abstract

The multiferroicity in a triangular spin lattice with proper-screw-spin chain order was explored by performing density functional calculations for AgCrO2 and analyzing the symmetry of the magnetic structure of the triangular spin lattice. Strong geometric spin frustration exists within and between CrO2 layers, and the ferroelectric polarization originates from the spiral-spin chain structures propagating across the proper-screw-spin chains. The triangular spin lattice can have ferroelectric polarization parallel to its mirror plane due to hidden symmetry.

Keywords

multiferroicity triangular spin lattice proper-screw-spin chain hidden symmetry density functional calculations AgCrO2

Cite

@article{arxiv.0903.2982,
  title  = {Hidden Symmetry and Mutiferroicity in a Triangular Spin Lattice With Proper-Screw-Spin Chain Order},
  author = {E. J. Kan and H. J. Xiang and Y. Zhang and C. Lee and M. -H. Whangbo},
  journal= {arXiv preprint arXiv:0903.2982},
  year   = {2009}
}

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