Abstract
The Hartree-Bogoliubov (HB) framework of calculations has been applied for calculating various nuclear structure quantities for 154–166Dy mass chains. In this framework, the intrinsic quadrupole moments, the low-lying yrast states (E2+ and E4+) and occupation numbers for various shell model orbits have been obtained. The calculated results indicate that the observed onset of deformation in going from 154Dy to 166Dy arises due to enhanced occupation of (h11/2)π orbit, increased polarization of (d5/2)π orbit and increase in the occupation of down-slopping ‘k’ components of (i13/2)υ and (h9/2)υ orbits.
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