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

Abstract

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 omparison with the neutron scattering results of Kang et al and Matsuura et al.on $N{d}_{1.85}C{e}_{0.15}Cu{O}_4$, 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.

arXiv comment4 pages, 3 figures v3: final version PRL 92, 107002 (2004)

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Cited by in corpus (4)

• Phase Decomposition and Chemical Inhomogeneity in Nd2-xCexCuO4
• Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4
• A model of phase fluctuations in a lattice d-wave superconductor: application to the Cooper pair charge-density-wave in underdoped cuprates
• Field-dependent diamagnetic transition in magnetic superconductor $S{m}_{1.85}C{e}_{0.15}Cu{O}_{4-y}$