Abstract
The structure of the neutron-rich isotopes $^{59,60}\mathrm{Fe}$ has been studied with the Gammasphere detector array using fusion-evaporation reactions. Level schemes for these nuclei are presented which have been extended to spins of $~20\ensuremath{\hbar}$. Both isotopes exhibit regular, near-yrast \ensuremath{\gamma}-decay sequences which are generated by the intrusion of the ${g}_{9/2}$ orbital into the $\mathit{fp}$ shell-model space. Lower-spin, natural-parity levels are discussed within the context of shell-model calculations using the GXPF1A interaction in the full $\mathit{fp}$ model space. Experimental features of the high-spin bands are compared with total Routhian surface calculations.
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