Zeeman Effect in Weak Magnetic Fields

Abstract

ACCORDING to Voigt, the displacement of the outer components of the Zeeman triplet plotted against the strength of the magnetic field is represented by a hyperbola, when the light is observed at right angles to the field. The hyperbola approaches asymptotically to a straight line in strong fields, where most of the observations have hitherto been made by different experimenters. Moreover, the intensity of the component towards the red is greater than that towards the violet in weak fields, and gradually tends to equality as the field is increased. Gehrcke and von Baeyer examined the separation of the satellites of the mercury line 546.1 μμ in a field of 535 Gauss, but did not notice the asymmetry as indicated by theory.