The 'Ni nucleus has been identified among the products of deep-inelastic reactions of Ni projectiles bombarding '3OTe and~o 'Pb targets. Three new states, including the high-lying 2+ (2033 keV) and the 0.86 ms 5 isomer, indicate a substantial subshell closure at neutron number N = 40. The level structure and the observed very slow E3 transition speed are discussed within the shell model. PACS numbers: 27.50.+e, 21.60.Cs, 23.20.Lv, 25.70.Lm In spherical nuclei the 1g9/2 orbital is distinctly separated in energy from all other single-particle levels. This gives rise to the well established magicity of the neutron and proton numbers N, Z = 50 and points towards a somewhat less pronounced closure at N, Z = 40. For protons the Z = 40 subshell closure is clearly demonstrated by the well known level structure of the 9OZr nucleus [1], for which the lowest excitation is the 1.76 MeV 0+ state, the first 2+ state appears at 2.19 MeV, and the lowest lying particle-hole (p,~2g9t2) excitation produces the longlived 5 isomeric state. The study of similar features in

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The level structures of146Gd and147Gd have been investigated by in-beamgamma-ray ande – spectroscopy with (agr, xn) reactions on enriched Sm targets. Detailed level schemes up to sim4 MeV, which differ radically from earlier schemes, are reported. The energy levels are characterized as particle-hole excitations using empirical single particle energies and two nucleon interactions. Analysis of pure 1p 1h proton excitations demonstrates that theZ=64 andN=82 energy gaps are about equally large

The yrast states of 148Dy and 149Dy have been studied by ?-ray and conversion electron measurements in (c~,xn) and (160, xn) reactions on enriched ~S2Gd and ~36Ce targets. Level schemes to above 4MeV for the two nuclei are reported. The ~h~/2 spectrum identified in 148Dy and the ~haa/2 effective charge eeff=l.52_+0.05e, derived from the measured E2 transition rate between the (rch~/2) 10 + and 8 + states, are discussed and compared with results for other two-particle nuclei. The yrast cascades in a48Dy and a49Dy continue above the (Tzh2a/2) 10 + and (zchZ~/2vfT/2) 27/2-states by --~1 MeV E1 transitions de-exciting the lowest members of octupole multiplets built on these states.The energy shifts for the observed members of the 7zh21/2 • 3-multiplet are analyzed in terms of twoparticle-phonon exchange coupling using an empirical coupling strength extracted from the one valence particle nucleus 14VTb. The dominant vf7/2 x 3-character of low-lying 13/2 + isomers in 149Dy and other N = 83 nuclei is emphasized.