Interlayer mass transport and quantum confinement of electronic states

被引：58

作者：

Giesen, M ^{[1
]}

Icking-Konert, GS ^{[1
]}

Ibach, H ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Grenzflachenforsch & Vakuumphys, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.82.3101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A numerical analysis of the ripening of multilayer islands on Cu(111) shows that the Ehrlich-Schwoebel barrier for interlayer mass transport is independent of the terrace width w as long as w > w(c) = 14 +/- 2 Angstrom, but vanishes for w < w(c). The critical width we corresponds exactly to the terrace width below which the surface state is pushed above the Fermi level due to quantum confinement. The Ehrlich-Schwoebel barrier is therefore correlated with the occupation of surface states.

引用

页码：3101 / 3104

页数：4

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