Zeeman Effect in the 2782 Å Band of HCP

Abstract

The Zeeman effect in the 2782.22 Å band of HCP has been observed and indicates the excited state is 3Δ1. A formula is derived for a 3Δ1 state, intermediate between case (a) and case (b), which expresses the Zeeman splitting as a function of J and the spin–orbit coupling constant. By applying this formula the spin–orbit coupling constant is found to be +22.3 or −16.0 cm−1, depending on whether the 3Δ state is normal or inverted. The rotational constant and band origin for these two cases are also computed.