Solid state 27Al NMR investigation of Knight shift tensors of LnAl2 (Ln=Y, La and Lu) and correlation with DFT calculations

► 27Al isotropic Knight shifts were measured in LnAl2 (Ln=Y, La, Lu) cubic laves phases. ► Calculations within DFT theory framework for these phases were also performed. ► The shifts were found to originate from s character density of states at the Fermi level on Al sites.