From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In$_{1-x}$Hg$_{x}$)$_{5}$ ($x$=0.01)

CeCo(In $_{0.990}$ Hg $_{0.010}$ ) $_{5}$ is a charge doped variant of the $d$ -wave CoCoIn $_{5}$ superconductor with coexistent antiferromagnetic and superconducting transitions occurring at T $_{N}$ = 3.4 K and T $_{c}$ =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 CeCoIn $_{5}$ and is stabilized through hole doping with Hg.

From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In $_{1 - x}$ Hg $_{x}$ ) $_{5}$ ( $x$ =0.01)

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From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In $_{1 - x}$ Hg $_{x}$ ) $_{5}$ ( $x$ =0.01)

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From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In1−x1−x​Hgxx​)55​ (xx=0.01)

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From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In1−x1−x​Hgxx​)55​ (xx=0.01)

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From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In $_{1 - x}$ Hg $_{x}$ ) $_{5}$ ( $x$ =0.01)

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From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In $_{1 - x}$ Hg $_{x}$ ) $_{5}$ ( $x$ =0.01)

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AI智能校验