High-spin proton and neutron intruder configurations in ¹⁰⁶Cd

High-spin states in ¹⁰⁶Cd have been studied with the reactions ⁹⁴Zr(¹⁶O, 4n)¹⁰⁶Cd and ⁷⁶Ge(³⁴S, 4n)¹⁰⁶Cd. A rotational band, based on a two-quasineutron (h _{11 2})² configuration, is observed from its 10⁺ bandhead to spin 28 H{stroke}. This structure undergoes a band-crossing at a rotational frequency of approximately 0.45 MeV /H{stroke}, interpreted as the alignment of a pair of g _{7 2} neutrons. Time-correlated spectroscopy has been used to identify states above the previously observed 12⁺ isomer at 4660 keV. These include a weakly populated, strongly coupled structure which indirectly feeds the isomer, and whose alignment and in-band decay properties are consistent with a deformed ν(h _{11 2})²π(g _{9 2}g _{7 2}), four-quasiparticle configuration. The results are discussed in terms of cranked-shell-model and total-routhian-surface calculations. No evidence is found for a reported 16⁺ isomer at 7119 keV.