Transition Probabilities for the Excited Statedε3Γ32ofCr3+

Abstract

In recent experiments Geschwind has observed transitions between the Zeeman components of the excited metastable state $d{\epsilon }^3{}_{}{}^2{}_{}{}^{}\Gamma _3^{}{}_{}{}^{}$ of trivalent chromium present as a dilute impurity in ${\mathrm{Al}}_2$ ${\mathrm{O}}_3$. In first order the transitions are forbidden. In third order a number of processes give rise to a transition probability and predict $g_{\perp }=0.1\mathrm{}$, consistent with the experimental observations. The magnetic moment associated with the transition is shown to rotate opposite to the usual sense.