Quantitative test of SO(5) symmetry in the vortex state of Nd(1.85)Ce(0.15)CuO4.

نویسندگان

  • Han-Dong Chen
  • Congjun Wu
  • Shou-Cheng Zhang
چکیده

By numerically solving models with competing superconducting and antiferromagnetic orders, we study the magnetic field dependence of the antiferromagnetic moment in both the weak and strong field regimes. Through a comparison with the neutron scattering results of Kang et al. and Matsuura et al. on Nd(1.85)Ce(0.15)CuO4, we conclude that this system is close to a SO(5) symmetric critical point. We also make a quantitative prediction on increasing the upper critical field B(c2) and the superconducting transition temperature T(c) by applying an in-plane magnetic field.

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عنوان ژورنال:
  • Physical review letters

دوره 92 10  شماره 

صفحات  -

تاریخ انتشار 2004