SO(5) Superconductors in a Zeeman Magnetic Field
arXiv:cond-mat/9912261 · doi:10.1103/PhysRevB.62.R791
Abstract
The generic symmetry of a system under a uniform Zeeman magnetic field is U(1) x U(1). However, we show that SO(5) models in the presence of a finite chemical potential and a finite Zeeman magnetic field can have a exact SU(2) x U(1) symmetry. This principle can be used to test SO(5) symmetry at any doping level.
References in corpus (1)
Cited by in corpus (3)
- Coexistence of Superconductivity and Antiferromagnetism in Heavy-Fermion Superconductor CeCu_{2}(Si_{1-x}Ge_{x})_{2} Probed by Cu-NQR --A Test Case for the SO(5) Theory--
- Evolution of the spin resonance of CeCoIn as a function of magnetic field and La substitution
- SO(5) superconductor in a Zeeman magnetic field: Phase diagram and thermodynamic properties