The composition and structure of Cu3Au(110)-(4x1): A low-energy electron diffraction analysis

被引：14

作者：

Over, H ^{[1
]}

Gilarowski, G ^{[1
]}

Niehus, H ^{[1
]}

机构：

[1] HUMBOLDT UNIV BERLIN,INST PHYS OBERFLACHENPHYS & ATOMSTOSSPROZESSE,D-10115 BERLIN,GERMANY

来源：

SURFACE SCIENCE | 1997年 / 381卷 / 2-3期

关键词：

alloys; copper; gold; low energy electron diffraction; surface structure;

D O I：

10.1016/S0039-6028(97)00086-1

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 structure of the clean Cu3Au(110)-(4 x 1) surface has been determined using quantitative LEED. It turned out that in the first layer, Cu and Au rows along the [001] direction pair up to build the (4 x 1) periodicity. The second layer contains at least 25%, Au so that the surface region is Au-enriched. The resulting structure can be regarded as a monatomic-thick Au wire embedded in a Cu matrix. (C) 1997 Elsevier Science B.V.

引用

页码：L619 / L622

页数：4

共 17 条

[1]

ALVERADO SF, 1987, J PHYS B ATOM MOL PH, V66, P103

[2] ORDER-DISORDER AND SEGREGATION BEHAVIOR AT THE CU3AU(001) SURFACE [J].

BUCK, TM ;

WHEATLEY, GH ;

MARCHUT, L .

PHYSICAL REVIEW LETTERS, 1983, 51 (01) :43-46

[3] LONG-RANGE ORDER NEAR THE CU3AU(001) SURFACE BY EVANESCENT X-RAY-SCATTERING [J].

DOSCH, H ;

MAILANDER, L ;

REICHERT, H ;

PEISL, J ;

JOHNSON, RL .

PHYSICAL REVIEW B, 1991, 43 (16) :13172-13186

[4]

GIERER M, UNPUB

[5] A STUDY OF THE CU3AU(110) SURFACE-STRUCTURE BY RHEED [J].

HUANG, Y ;

COWLEY, JM .

SURFACE SCIENCE, 1993, 285 (1-2) :42-58

[6] RANDOM OCCUPATION OF ADSORPTION SITES IN C(2X2) STRUCTURE OF CO ON FE[001] [J].

JONA, F ;

LEGG, KO ;

SHIH, HD ;

JEPSEN, DW ;

MARCUS, PM .

PHYSICAL REVIEW LETTERS, 1978, 40 (22) :1466-1469

[7]

KLEINLE G, 1989, SURF SCI, V219, pL637, DOI 10.1016/0039-6028(89)90512-8

[8] AN EFFICIENT METHOD FOR LEED CRYSTALLOGRAPHY [J].

KLEINLE, G ;

MORITZ, W ;

ERTL, G .

SURFACE SCIENCE, 1990, 238 (1-3) :119-131

[9] SURFACE COMPOSITIONAL ORDERING AND DOMAIN-WALLS IN CU3AU [J].

MCRAE, EG ;

BUCK, TM .

SURFACE SCIENCE, 1990, 227 (1-2) :67-72

[10]

MIEDEMA AR, 1978, Z METALLKD, V69, P455

← 1 2 →