Low-lying energy levels in 166Ho

The properties of some low-excited states of ¹⁶⁶Ho have been studied using thin, high resolution Ge detectors. The relative intensities of γ-lines were determined. The directional angular correlation measurements for the 28.23–54.24 keV cascade are in agreement with the 1^?(M1)2^?(E2)0^? spin sequence. The magnetic moment μ = 0.068 ± 0.010 μ_N of the 54.24 keV level was determined by integral perturbed angular correlation (IPAC) in an external magnetic field. This value can be explained by the configuration mixing due to the Coriolis interaction.