Rubio, A.Balbás Ruesgas, Luis CarlosSerra, LlorençBarranco Gómez, Manuel2009-10-272009-10-2719900163-1829https://hdl.handle.net/2445/9833Nonlocal approximations for the electronic exchange and correlation effects are used to compute, within density-functional theory, the polarizability and surface-plasma frequencies of small jelliumlike alkali-metal clusters. The results are compared with those obtained using the local-density approximation and with available experimental data, showing the relevance of these effects in obtaining an accurate description of the surface response of metallic clusters.15 p.application/pdfeng(c) The American Physical Society, 1990Teoria del funcional de densitatPlasmons (Física)Polarització (Electricitat)Density functional theoryPlasmons (Physics)Polarization (Electricity)Static dipole polarizability of alkali-metal clusters: Electronic exchange and correlation effectsinfo:eu-repo/semantics/article61565info:eu-repo/semantics/openAccess