Formation and structural analysis of a surface alloy: Al(111) p(2x2)-Na

J. Burchhardt; Martin Meedom Nielsen; D.L. Adams; E. Lundgren; J.N. Andersen; C. Stampfl; M. Scheffler; A. Schmalz; S. Aminpirooz; J. Haase

doi:10.1103/PhysRevLett.74.1617

Formation and structural analysis of a surface alloy: Al(111) p(2x2)-Na

J. Burchhardt
, Martin Meedom Nielsen
, D.L. Adams
, E. Lundgren
, J.N. Andersen
, C. Stampfl
, M. Scheffler
, A. Schmalz
, S. Aminpirooz
, J. Haase

Aarhus University
Lund University
Fritz Haber Institute of the Max Planck Society

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The Al(111)-(2 × 2)-Na phase formed by adsorption of one-half monolayer Na at 300 K is shown to be a surface alloy. Quantitative agreement is achieved between the results of structure determinations by low energy electron diffraction, surface extended x-ray adsorption fine structure, and total energy calculations. The first four layers of the structure are shown to consist of a Na-Al-Na sandwich on a reconstructed Al substrate layer. It is suggested that the formation of the structure involves surface steps as sources of Al atoms.

© 1995 The American Physical Society

Original language	English
Journal	Physical Review Letters
Volume	74
Issue number	9
Pages (from-to)	1617-1620
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.74.1617
Publication status	Published - 1995
Externally published	Yes

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title = "Formation and structural analysis of a surface alloy: Al(111) p(2x2)-Na",

abstract = "The Al(111)-(2 {\texttimes} 2)-Na phase formed by adsorption of one-half monolayer Na at 300 K is shown to be a surface alloy. Quantitative agreement is achieved between the results of structure determinations by low energy electron diffraction, surface extended x-ray adsorption fine structure, and total energy calculations. The first four layers of the structure are shown to consist of a Na-Al-Na sandwich on a reconstructed Al substrate layer. It is suggested that the formation of the structure involves surface steps as sources of Al atoms. {\textcopyright} 1995 The American Physical Society",

author = "J. Burchhardt and Nielsen, \{Martin Meedom\} and D.L. Adams and E. Lundgren and J.N. Andersen and C. Stampfl and M. Scheffler and A. Schmalz and S. Aminpirooz and J. Haase",

year = "1995",

doi = "10.1103/PhysRevLett.74.1617",

language = "English",

volume = "74",

pages = "1617--1620",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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TY - JOUR

T1 - Formation and structural analysis of a surface alloy

T2 - Al(111) p(2x2)-Na

AU - Burchhardt, J.

AU - Nielsen, Martin Meedom

AU - Adams, D.L.

AU - Lundgren, E.

AU - Andersen, J.N.

AU - Stampfl, C.

AU - Scheffler, M.

AU - Schmalz, A.

AU - Aminpirooz, S.

AU - Haase, J.

PY - 1995

Y1 - 1995

N2 - The Al(111)-(2 × 2)-Na phase formed by adsorption of one-half monolayer Na at 300 K is shown to be a surface alloy. Quantitative agreement is achieved between the results of structure determinations by low energy electron diffraction, surface extended x-ray adsorption fine structure, and total energy calculations. The first four layers of the structure are shown to consist of a Na-Al-Na sandwich on a reconstructed Al substrate layer. It is suggested that the formation of the structure involves surface steps as sources of Al atoms. © 1995 The American Physical Society

AB - The Al(111)-(2 × 2)-Na phase formed by adsorption of one-half monolayer Na at 300 K is shown to be a surface alloy. Quantitative agreement is achieved between the results of structure determinations by low energy electron diffraction, surface extended x-ray adsorption fine structure, and total energy calculations. The first four layers of the structure are shown to consist of a Na-Al-Na sandwich on a reconstructed Al substrate layer. It is suggested that the formation of the structure involves surface steps as sources of Al atoms. © 1995 The American Physical Society

U2 - 10.1103/PhysRevLett.74.1617

DO - 10.1103/PhysRevLett.74.1617

M3 - Journal article

SN - 0031-9007

VL - 74

SP - 1617

EP - 1620

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

ER -

Formation and structural analysis of a surface alloy: Al(111) p(2x2)-Na

Abstract

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