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Based on our previous works about the configuration-constrained potential-energy-surface model investigating multi-quasiparticle high-K states, we have further developed the cranking configuration-constrained total Routhian surface method to calculate the collective rotations of the multiquasiparticle high-K states. The non-axial deformed Woods-Saxon potential has been adopted to obtain single-particle levels. The Woods-Saxon potential gives excellent single-particle level spacing, which is very important for the excitation energy calculations of high-K states. In order to improve pairing calculations, a particle-number-conserving pairing method has been incorporated into the TRS calculation. The calculated moments of inertia can well reproduce experimental values. The structures of the high-K states can be analyzed by the calculations. [ABSTRACT FROM AUTHOR]

High-K isomeric states and their decays give access to the excited-state structure of neutron-rich rare-earth nuclides, where a maximum in β6 deformation has been predicted. Using extensions of the Nilsson-Strutinsky approach, including configuration constraints, we have calculated single-particle energies, and two-quasiparticle excitation energies. Their sensitivity to β6 deformation is discussed, as well as the possible influence of β6 deformation on collective rotational energies. [ABSTRACT FROM AUTHOR]