Magnetic structural change of Sr2IrO4 upon Mn doping

S. Calder; G. -X. Cao; M. D. Lumsden; J. W. Kim; Z. Gai; B. C. Sales; D. Mandrus; A. D. Christianson

doi:10.1103/PhysRevB.86.220403

Magnetic structural change of Sr2IrO4 upon Mn doping

Strongly Correlated Electrons 2015-03-20 v2 Materials Science

Authors: S. Calder , G. -X. Cao , M. D. Lumsden , J. W. Kim , Z. Gai , B. C. Sales , D. Mandrus , A. D. Christianson

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Abstract

The layered 5d transition metal oxide Sr2IrO4 has been shown to host a novel Jeff=1/2 Mott spin orbit insulating state with antiferromagnetic ordering, leading to comparisons with the layered cuprates. Here we study the effect of substituting Mn for Ir in single crystals of Sr2Ir0.9Mn0.1O4 through an investigation involving bulk measurements and resonant x-ray and neutron scattering. We observe a new long range magnetic structure emerge upon doping through a reordering of the spins from the basal plane to the c-axis with a reduced ordering temperature compared to Sr2IrO4. The strong enhancement of the magnetic x-ray scattering intensity at the L3 edge relative to the L2 edge indicates that the Jeff=1/2 state is robust and capable of hosting a variety of ground states.

Keywords

doped magnetic materials frustrated magnetism perovskite magnetism

Cite

@article{arxiv.1208.2229,
  title  = {Magnetic structural change of Sr2IrO4 upon Mn doping},
  author = {S. Calder and G. -X. Cao and M. D. Lumsden and J. W. Kim and Z. Gai and B. C. Sales and D. Mandrus and A. D. Christianson},
  journal= {arXiv preprint arXiv:1208.2229},
  year   = {2015}
}

Magnetic structural change of Sr2IrO4 upon Mn doping

Abstract

Keywords

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