Step-induced one-dimensional surface state on Cu(332)

被引：34

作者：

Baumberger, F ^{[1
]}

Greber, T ^{[1
]}

Osterwalder, J ^{[1
]}

机构：

[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.62.15431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Shockley (L gap) surface state on Cu(332) has been studied by angle scanned ultraviolet photoelectron spectroscopy. The Fermi surface indicates a two-dimensional (2D) and a one-dimensional (1D) state, both propagating freely parallel to the steps. Normal to the steps, the 2D state is slightly confined while the 1D stare is localized. The 1D state can be rationalized either by disorder in the one-dimensional step lattice or by surface-bulk coupling at the individual steps. In both scenarios this 1D state represents an important link between scanning tunneling microscopy/spectroscopy and photoemission data.

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页码：15431 / 15434

页数：4

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