Abstract: Unconventional superconductivity in materials with strong spin-orbit coupling
Magnetism and superconductivity are usually regarded as competing forms of order: magnetic fields tend to suppress superconductivity, while magnetic correlations often destabilise conventional Cooper pairing. Yet in some materials, magnetic fields can act as a trigger of hidden superconducting states. In particular, centrosymmetric superconductors with strong spin–orbit coupling provide a setting in which applied fields may induce transitions between superconducting phases with different pairing symmetries. In this talk, I will discuss recent experimental evidence for such field-induced transformations, focusing on how tunnelling spectroscopy and magnetization measurements reveal changes in the superconducting order parameter. These results illustrate how magnetic fields can uncover unconventional pairing channels that remain hidden at zero field.