Rotational band properties in 165Er

High-spin states in Er-165 have been studied experimentally using the Gd-160(Be-9, 4n) reaction at beam energies of 42 and 45MeV. The previously known bands based on the 5/2(+)[642], 5/2(-)[523], and 11/2(-)[505] configurations are extended to (49/2(+)), (45/2(-)), and (31/2(-)) states, respectively. The rotational bands in Er-165 generally show gradual alignment processes, indicating strong band interactions associated with the i(13/2) neutron alignments. The band properties are compared with those in the neighboring nuclei and discussed within the framework of the cranked shell model.