The structure of the quasihexagonal close packed (4x4) Na layer on Al(111): A SEXAFS study

A. Schmalz; S. Aminpirooz; J. Haase; D.R. Batchelor; Martin Meedom Nielsen; E. Bøgh; D.L. Adams

doi:10.1016/0039-6028(94)91275-0

The structure of the quasihexagonal close packed (4x4) Na layer on Al(111): A SEXAFS study

A. Schmalz, S. Aminpirooz, J. Haase, D.R. Batchelor, Martin Meedom Nielsen, E. Bøgh, D.L. Adams

Research output: Contribution to journal › Letter › peer-review

Abstract

The Al(111)-(4x4)-Na structure formed by adsorption of Na on Al(111) at low temperature is studied by surface extended X-ray absorption fine structure (SEXAFS). Analysis of the SEXAFS measurements shows that the adsorbed layer is quasihexagonal close-packed and slightly compressed, with a nearest-neighbour Na-Na bond length of 3.70+/-0.03 Angstrom. Na atoms are adsorbed in 3 different adsorption sites with roughly equal Na-Al bond lengths of 2.8 Angstrom but different perpendicular distances from the surface. Thus the Na layer is not strictly planar.

Original language	English
Journal	Surface Science
Volume	301
Issue number	1-3
Pages (from-to)	L211-L216
ISSN	0039-6028
DOIs	https://doi.org/10.1016/0039-6028(94)91275-0
Publication status	Published - 1994
Externally published	Yes

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title = "The structure of the quasihexagonal close packed (4x4) Na layer on Al(111): A SEXAFS study",

abstract = "The Al(111)-(4x4)-Na structure formed by adsorption of Na on Al(111) at low temperature is studied by surface extended X-ray absorption fine structure (SEXAFS). Analysis of the SEXAFS measurements shows that the adsorbed layer is quasihexagonal close-packed and slightly compressed, with a nearest-neighbour Na-Na bond length of 3.70+/-0.03 Angstrom. Na atoms are adsorbed in 3 different adsorption sites with roughly equal Na-Al bond lengths of 2.8 Angstrom but different perpendicular distances from the surface. Thus the Na layer is not strictly planar. ",

author = "A. Schmalz and S. Aminpirooz and J. Haase and D.R. Batchelor and Nielsen, {Martin Meedom} and E. B{\o}gh and D.L. Adams",

year = "1994",

doi = "10.1016/0039-6028(94)91275-0",

language = "English",

volume = "301",

pages = "L211--L216",

journal = "Surface Science",

issn = "0039-6028",

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TY - JOUR

T1 - The structure of the quasihexagonal close packed (4x4) Na layer on Al(111)

T2 - A SEXAFS study

AU - Schmalz, A.

AU - Aminpirooz, S.

AU - Haase, J.

AU - Batchelor, D.R.

AU - Nielsen, Martin Meedom

AU - Bøgh, E.

AU - Adams, D.L.

PY - 1994

Y1 - 1994

N2 - The Al(111)-(4x4)-Na structure formed by adsorption of Na on Al(111) at low temperature is studied by surface extended X-ray absorption fine structure (SEXAFS). Analysis of the SEXAFS measurements shows that the adsorbed layer is quasihexagonal close-packed and slightly compressed, with a nearest-neighbour Na-Na bond length of 3.70+/-0.03 Angstrom. Na atoms are adsorbed in 3 different adsorption sites with roughly equal Na-Al bond lengths of 2.8 Angstrom but different perpendicular distances from the surface. Thus the Na layer is not strictly planar.

AB - The Al(111)-(4x4)-Na structure formed by adsorption of Na on Al(111) at low temperature is studied by surface extended X-ray absorption fine structure (SEXAFS). Analysis of the SEXAFS measurements shows that the adsorbed layer is quasihexagonal close-packed and slightly compressed, with a nearest-neighbour Na-Na bond length of 3.70+/-0.03 Angstrom. Na atoms are adsorbed in 3 different adsorption sites with roughly equal Na-Al bond lengths of 2.8 Angstrom but different perpendicular distances from the surface. Thus the Na layer is not strictly planar.

U2 - 10.1016/0039-6028(94)91275-0

DO - 10.1016/0039-6028(94)91275-0

M3 - Letter

SN - 0039-6028

VL - 301

SP - L211-L216

JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

The structure of the quasihexagonal close packed (4x4) Na layer on Al(111): A SEXAFS study

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