%0 Journal Article
%A Stock, C.
%A Rodriguez-Rivera, J. A.
%A Schmalzl, K.
%A Demmel, F.
%A Singh, D. K.
%A Ronning, F.
%A Thompson, J. D.
%A Bauer, E. D.
%T From Ising Resonant Fluctuations to Static Uniaxial Order in Antiferromagnetic and Weakly Superconducting CeCo ( In 1 − x Hg x ) 5 ( x = 0.01 )
%J Physical review letters
%V 121
%N 3
%@ 1079-7114
%C College Park, Md.
%I APS
%M FZJ-2018-04477
%P 037003
%D 2018
%X CeCo(In0.990Hg0.010)5 is a charge doped variant of the d-wave CoCoIn5 superconductor with coexistent antiferromagnetic and superconducting transitions occurring at TN=3.4 and Tc=1.4  K, respectively. We use neutron diffraction and spectroscopy to show that the magnetic resonant fluctuations present in the parent superconducting phase are replaced by collinear c-axis magnetic order with three-dimensional Ising critical fluctuations. No low-energy transverse spin fluctuations are observable in this doping-induced antiferromagnetic phase and the dynamic resonant spectral weight predominately shifts to the elastic channel. Static (τ>0.2  ns) collinear Ising order is proximate to superconductivity in CeCoIn5 and is stabilized through hole doping with Hg.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:30085774
%U <Go to ISI:>//WOS:000439286800006
%R 10.1103/PhysRevLett.121.037003
%U https://juser.fz-juelich.de/record/850669