Electric field gradient tensor distributions in 2-dimensional incommensurate charge density wave systems

The incommensurate charge density modulation in 2-dimensional conducting sy stems leads to characteristic profiles of the charge density and to charact eristic distributions of electric field gradient (EFQ) tensor components wh ich can be probed by Knight-shift and nuclear quadrupole interaction measur ements, respectively The Fourier expansion of the charge density reveals ho w the density distribution translates into EFG tensor component distributio ns. Lineshape simulations for I=1 illustrate that the local model is inadeq uate.