BOUND-STATES IN THE SP-BAND GAP OF AG/AU(111) THIN-FILMS

被引：23

作者：

BECKMANN, A

KLAUA, M

MEINEL, K

机构：

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.48.1844

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface states and quantum-well states in thin metallic films are investigated within the framework of a nearly-free-electron (NFE) model and an effective-mass model by employing the Green's-function matching method. Applying the latter to Ag/Au(111), which is studied by angle-resolved photoemission, yields the edge parameters of the Ag sp band, viz., E (L2') = - 0.35 eV and the effective mass m * = - 0.19. The binding energies are obtained as a function of the film thickness. The NFE model with free-electron mass yields the best coincidence with the experimental data.

引用

页码：1844 / 1852

页数：9

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