The Behavior of a Triplet Superconductor in a Spin Only Magnetic Field
Powell, B. J. · Annett, James F. · Gyorffy, B. L.
Original · EN
We investigate the order parameter of Sr₂RuO₄ in an exchange-only magnetic field. A Ginzburg-Landau symmetry analysis implies three possibilities: a pure ³He A phase, a ³He A₁ or a ³He A₂ phase. We explore the exchange field dependence of the order parameter and energy gap in a one-band model of Sr₂RuO₄. The numerical solutions show no A₁ phase and that the A₂ phase is lower in free energy than the A phase. We explore heat capacity as a function of temperature and field strength and find quantitatively different behaviors for the A and A₂ phases.
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