The heavy fermion Ce(Rh,Ir)In5 system exhibits properties that range from an incommensurate antiferromagnet on the Rh-rich end to an exotic superconductor on the Ir-rich end of the phase diagram. At intermediate composition where antiferromagnetism coexists with superconductivity, two types of magnetic order are observed: the incommensurate one of CeRhIn5 and a new, commensurate antiferromagnetism that orders separately. The coexistence of f-electron superconductivity with two distinct f-electron magnetic orders is unique among unconventional superconductors, adding a new variety to the usual coexistence found in magnetic superconductors.
@article{arxiv.cond-mat/0509780,
title = {Novel Coexistence of Superconductivity with Two Distinct Magnetic Orders},
author = {A. D. Christianson and A. Llobet and Wei Bao and J. S. Gardner and I. P. Swainson and J. W. Lynn and J. -M. Mignot and K. Prokes and P. G. Pagliuso and N. O. Moreno and J. L. Sarrao and J. D. Thompson and A. H. Lacerda},
journal= {arXiv preprint arXiv:cond-mat/0509780},
year = {2016}
}