Measurements of the differential cross section for the 'Li(d.aun) reaction have been performed at incident deuteron energy Ed = 19.7 MeV. An appropriate kinematical configuration was chosen to observe the population of the second excited 8Be level. The values of ( I 1.3 i 0.2) MeV for the excitation energy and of (3.7 f 0.2) MeV for the width of the above level
Spin-density functional theory, in the local spin-density approximation (LSDA) was used to calculate the total Fermi contact contribution, K,, to the Knight shift in solid Mg. The self-consistent spin-polarised Kohn-Sham equations were solved for the spin and number densities by the linear augmented plane wave method in the muffin-tin approximation. For the exchange-correlation energy functional we used the recent accurate results of Vosko et al. K , was found to consist of the contributions 0.138",, -0.003", and -0.007", due to the Fermi surface, core and valence electrons below the Fermi surface respectively, yielding a total which is 140," larger than the experimental value.We compare our results with previous LSDA calculations which used an ion-in-jellium model.
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