How does relativity affect magnetically induced currents?

Abstract

Magnetically induced probability currents in molecules are studied in relativistic theory. Spin–orbit coupling (SOC) enhances the curvature and gives rise to a previously unobserved current cusp in AuH or small bulge-like distortions in HgH₂ at the proton positions. The origin of this curvature is magnetically induced spin-density arising from SOC in the relativistic description.