Magnetic structure of Cd-doped CeIrIn$_5$

K. Beauvois; N. Qureshi; R. Tsunoda; Y. Hirose; R. Settai; D. Aoki; P. Rodière; A. McCollam; I. Sheikin

doi:10.1103/PhysRevB.101.195146

Magnetic structure of Cd-doped CeIrIn$_5$

Strongly Correlated Electrons 2020-05-29 v1

Authors: K. Beauvois , N. Qureshi , R. Tsunoda , Y. Hirose , R. Settai , D. Aoki , P. Rodière , A. McCollam , I. Sheikin

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Abstract

We report the magnetic structure of nominally 10% Cd-doped CeIrIn $_5$ , CeIr(In $_{0.9}$ Cd $_{0.1}$ ) $_5$ , determined by elastic neutron scattering. Magnetic intensity was observed only at the ordering wave vector $Q_{AF} = (1/2,1/2,1/2)$ , commensurate with the crystal lattice. A staggered moment of 0.47(3) $\mu_B$ at 1.8 K resides on the Ce ion. The magnetic moments are found to be aligned along the crystallographic $c$ axis. This is further confirmed by magnetic susceptibility data, which suggest the $c$ axis to be the easy magnetic axis. The determined magnetic structure is strikingly different from the incommensurate antiferromagnetic ordering of the closely related compound CeRhIn $_5$ , in which the magnetic moments are antiferromagnetically aligned within the tetragonal basal plane.

Keywords

magnetic structure Cd-doped CeIrIn5 elastic neutron scattering antiferromagnetic ordering commensurate wave vector staggered moment

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@article{arxiv.2005.11782,
  title  = {Magnetic structure of Cd-doped CeIrIn$_5$},
  author = {K. Beauvois and N. Qureshi and R. Tsunoda and Y. Hirose and R. Settai and D. Aoki and P. Rodière and A. McCollam and I. Sheikin},
  journal= {arXiv preprint arXiv:2005.11782},
  year   = {2020}
}

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6 pages, 5 figures. Accepted for publication in Phys. Rev. B

Magnetic structure of Cd-doped CeIrIn$_5$

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