Long range magnetic ordering in Na$_2$IrO$_3$

X. Liu; T. Berlijn; W. -G. Yin; W. Ku; A. Tsvelik; Young-June Kim; H. Gretarsson; Yogesh Singh; P. Gegenwart; J. P. Hill

doi:10.1103/PhysRevB.83.220403

Long range magnetic ordering in Na$_2$IrO$_3$

Materials Science 2011-07-12 v2

Authors: X. Liu , T. Berlijn , W. -G. Yin , W. Ku , A. Tsvelik , Young-June Kim , H. Gretarsson , Yogesh Singh , P. Gegenwart , J. P. Hill

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report a combined experimental and theoretical investigation of the magnetic structure of the honeycomb lattice magnet Na $_2$ IrO $_3$ , a strong candidate for a realization of a gapless spin-liquid. Using resonant x-ray magnetic scattering at the Ir L $_3$ -edge, we find 3D long range antiferromagnetic order below T $_N$ =13.3 K. From the azimuthal dependence of the magnetic Bragg peak, the ordered moment is determined to be predominantly along the {\it a}-axis. Combining the experimental data with first principles calculations, we propose that the most likely spin structure is a novel "zig-zag" structure.

Keywords

frustrated magnetism charge ordering

Cite

@article{arxiv.1104.4046,
  title  = {Long range magnetic ordering in Na$_2$IrO$_3$},
  author = {X. Liu and T. Berlijn and W. -G. Yin and W. Ku and A. Tsvelik and Young-June Kim and H. Gretarsson and Yogesh Singh and P. Gegenwart and J. P. Hill},
  journal= {arXiv preprint arXiv:1104.4046},
  year   = {2011}
}

Related papers

View all related →

Materials Science · Physics

Computational Study of the Magnetic Structure of Na$_2$IrO$_3$