The modification of the (M)over-bar-point Tamm state of Cu(001) at the corresponding vicinal faces

被引：4

作者：

Beckmann, A ^{[1
]}

Ammer, C ^{[1
]}

Meinel, K ^{[1
]}

Neddermeyer, H ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Fachbereich Phys, D-06099 Halle, Germany

来源：

SURFACE SCIENCE | 1999年 / 432卷 / 1-2期

关键词：

copper; photoelectron emission; semi-empirical models and model calculations; stepped single crystal surfaces; surface electronic phenomena;

D O I：

10.1016/S0039-6028(99)00653-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The d(xy) type Tamm state of Cu(001) is strongly modified at the corresponding vicinal faces Cu(10N). There is a considerable band narrowing owing to the confinement of electrons at the (001) terraces. By means of a tight binding scheme, the bandwidth is calculated as a function of N. From band calculation of the surface state, the broadening of the photoemission peak is obtained in dependence of the sharpness of the step correlation. For Cu(106) it is discussed that the peak broadening of ca 24 meV corresponds to the width of the step correlation function of 1.8 Angstrom. (C) 1999 published by Elsevier Science B.V. All rights reserved.

引用

页码：L589 / L593

页数：5

共 17 条

[1] Asymmetric peak broadening in photoemission of surface states as a consequence of lateral electron confinement [J].

Beckmann, A ;

Meinel, K ;

Ammer, C ;

Heiler, M ;

Neddermeyer, H .

SURFACE SCIENCE, 1997, 375 (01) :L363-L366

[2] ONE-DIMENSIONAL AND 2-DIMENSIONAL SURFACE-STATES ON METALS [J].

BERTEL, E .

SURFACE SCIENCE, 1995, 331 (pt B) :1136-1146

[3] ELECTRON-STATES AT CU SURFACES [J].

BULLETT, DW .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (30) :4521-4530

[4]

Haydock R., 1980, SOLID STATE PHYS, P215

[5] D-LIKE SURFACE-STATE BANDS ON CU(100) AND CU(111) OBSERVED IN ANGLE-RESOLVED PHOTOEMISSION SPECTROSCOPY [J].

HEIMANN, P ;

HERMANSON, J ;

MIOSGA, H ;

NEDDERMEYER, H .

PHYSICAL REVIEW B, 1979, 20 (08) :3059-3066

[6] OBSERVATION OF A D-LIKE SURFACE-STATE BAND ON CU(100) USING ANGLE-RESOLVED PHOTOEMISSION [J].

HEIMANN, P ;

HERMANSON, J ;

MIOSGA, H ;

NEDDERMEYER, H .

PHYSICAL REVIEW LETTERS, 1979, 42 (26) :1782-1784

[7]

HEINE V, 1980, SOLID STATE PHYS, V3, P1

[8]

Hengsberger M, 1998, SURF SCI, V405, pL491, DOI 10.1016/S0039-6028(98)00103-4

[9] PERTURBATIONS ON SURFACE ELECTRONIC-STRUCTURE INDUCED BY TRACE IMPURITIES - K ON CU(111) [J].

KEVAN, SD .

SURFACE SCIENCE, 1986, 178 (1-3) :229-243

[10]

KEVAN SD, 1992, STUDIES SURFACE SCI, V74, P99

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