Quantitative Test of SO(5) Symmetry in the Vortex State of $N{d}_{1.85}C{e}_{0.15}Cu{O}_4$

Han-Dong Chen, Congjun Wu, Shou-Cheng Zhang

By numerically solving models with competing superconducting and antiferromagnetic orders, we study the magnetic field dependence of the antiferromagnetic moment in both the weak a…