Shape evolution in the I≥30ħ high-spin states of ${}_{}{}^{144–150}{}_{}{}^{}\mathrm{Gd}$, ${}_{}{}^{150–156}{}_{}{}^{}\mathrm{Dy}$, ${}_{}{}^{152–158}{}_{}{}^{}\mathrm{Er}$, and ${}_{}{}^{154–160}{}_{}{}^{}\mathrm{Yb}$ is predicted theoretically within the cranking approximation using the generalized Strutinsky method. A comparison with available experimental data is provided.

• Received 25 June 1984

DOI:https://doi.org/10.1103/PhysRevC.31.298