Metal surface energy: Persistent cancellation of short-range correlation effects beyond the random phase approximation
Metal surface energy: Persistent cancellation of short-range correlation effects beyond the random phase approximation
The role that nonlocal short-range correlation plays at metal surfaces is investigated by analyzing the correlation surface-energy into contributions from dynamical density fluctuations of various two-dimensional wave vectors. Although short-range correlation is known to yield considerable correction to the ground-state energy of both uniform and nonuniform systems, short-range correlation effects …