A variety of precise experiments have been carried out to establish the character of the superconducting state in Sr₂RuO₄. Many of these appear to imply contradictory conclusions concerning the symmetries of this state. Here we propose that these results can be reconciled if we assume that there is a near-degeneracy between a \({d}_{{x}^{2}-{y}^{2}}\) (B_1g in group theory nomenclature) and a \({g}_{xy({x}^{2}-{y}^{2})}\) (A_2g) superconducting state. From a weak-coupling perspective, such an accidental degeneracy can occur at a point at which a balance between the on-site and nearest-neighbor repulsions triggers a d-wave to g-wave transition.

为了建立Sr ₂ RuO _4中超导状态的特性，已经进行了各种精确的实验。其中许多似乎暗示着关于该状态对称性的矛盾结论。如果我们假设\（{d} _ {{x} ^ {2}-{y} ^ {2}} \）（B _{1 g}在群论命名法中）和\（{g} _ {xy（{x} ^ {2}-{y} ^ {2}）} \）（A _{2 g}）超导状态。从弱耦合的角度来看，这种偶然的退化可能发生在现场排斥与最近邻排斥之间的平衡触发d波的时刻。克-wave过渡。