The Zeeman Effect in the ZnH and CdH Bands

Abstract

The Zeeman effect in the ${}_{}{}^2{}_{}{}^{}\Pi \to {}_{}{}^2{}_{}{}^{}\Sigma$ bands of ZnH at $\lambda 4326$ and CdH at $\lambda 4509$ which involve strictly case (a) ${}_{}{}^2{}_{}{}^{}\Pi$ states and ${}_{}{}^2{}_{}{}^{}\Sigma$ states with large $\rho$-type doubling is reported in detail. Field strengths up to 30,400 gauss were used, together with a large concave grating in a parallel light mounting which gives a dispersion in the third order of about 1.44A per mm in this region.