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High-spin yrast structures of even-even superheavy nuclei254-258Rf are investigated by means of total Routhian-surface approach in three-dimensional(β2, γ, β4) space. The behavior in the moments of inertia of256 Rf is well reproduced by our calculations, which is attributed to the j15/2neutron rotation-alignment. The competition between the rotationally aligned i13/2proton and j15/2neutron may occur to a large extent in256 Rf. High-spin predictions are also made for its neighboring isotopes254,258 Rf, showing that the alignment of the j15/2neutron pair is more favored than that of the i13/2proton pair.
High-spin yrast structures of even-even superheavy nuclei 254-258 Rf are investigated by means of total Routhian-surface approach in three-dimensional (β2, γ, β4) space. The behavior in the moments of inertia of 256 Rf is well reproduced by our calculations, which is attributed to the j15 / 2neutron rotation-alignment. The competition between the rotationally aligned i13 / 2 proton and j15 / 2neutron may occur to a large extent in 256 Rf. High-spin predictions are also made for its neighboring isotopes 254, 258 Rf , showing that the alignment of the j15 / 2neutron pair is more favored than that of the i13 / 2proton pair.