NONLOCAL ION POTENTIAL EFFECTS ON THE OPTICAL-RESPONSE OF LITHIUM CLUSTERS

被引：27

作者：

BLUNDELL, SA

GUET, C

机构：

[1] Laboratoire des Ions, Atomes et Agrégats, CENG, CEA/Département de Recherche Fondamentale Matière Condensée, Grenoble Cedex 9, F-38054, 17, rue des Martyrs

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1995年 / 33卷 / 02期

关键词：

D O I：

10.1007/BF01437434

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We present a spherical symmetry model, containing explicitly nonlocal effects in the electron-ion interaction, to describe the electronic properties of lithium clusters. We assume either an optimized discrete ionic structure or a jellium structure. The model provides the nonlocal potential from which the random phase approximation with exact exchange is applied to calculate the optical response of Li clusters. The optical response of Li-139(+) obtained within this model is in good agreement with the measured giant dipole resonance. The same model is used to predict alkali-metal effective masses; the agreement with band structure calculations is emphasized.

引用

页码：153 / 161

页数：9

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