Structure of Al(111)-(√3 × √3 )<i>R</i>30°-Na: A LEED study

Burchhardt, J.; Nielsen, Martin Meedom; Adams, D. L.; Lundgren, Edvin; Andersen, Jesper N

doi:10.1103/physrevb.50.4718

Cited by 71 publications

(21 citation statements)

References 17 publications

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“…The main common feature of these adsorption systems is that they form different structures at low and room temperatures because at room temperature the adsorption process involves a temperatureactivated vacancy formation on the surface, and the adsorbate atoms occupy these vacancies to form ordered substitutional structures. It was shown by using different experimental techniques that 1/3 ML of Na adsorbed on the Al(1 1 1) surface at room temperature occupy substitutional sites and form the ordered ð ffiffi ffi 3 p Â ffiffi ffi 3 p ÞR30 structure [2,5,6]. The similar results were obtained for adsorption of 1/2 ML of Na on the Al(1 0 0) surface where the c(2 · 2) phase is observed [7].…”

Section: Introductionsupporting

confidence: 80%

“…Many publications have been devoted to the adsorption of Na atoms on Al surfaces [2][3][4][5][6][7]. The main common feature of these adsorption systems is that they form different structures at low and room temperatures because at room temperature the adsorption process involves a temperatureactivated vacancy formation on the surface, and the adsorbate atoms occupy these vacancies to form ordered substitutional structures.…”

Section: Introductionmentioning

confidence: 99%

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Vibrations on Al surfaces covered by sodium

Rusina¹,

Eremeev²,

Borisova³

et al. 2006

Surface Science

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Section: Introductionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Vibrations on Al surfaces covered by sodium

Rusina¹,

Eremeev²,

Borisova³

et al. 2006

Surface Science

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“…Examples are surface alloy layers, such as those formed by Na which penetrates into the top layer of the Al(1 1 1) surface [191]. Finally, there are a small number of entries with both atoms and molecules coadsorbed at the surface, such as O and C 6 H 6 on the Ru(0 0 0 1) surface, as well as with metal adsorbates that form thin overlayer films, such as Ni films on top of a Cu(1 0 0) substrate.…”

Section: Surface Structure Compilationsmentioning

confidence: 99%

Crystallography and Surface Structure: An Introduction for Surface Scientists and Nanoscientists

Hermann

2016

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Book cover text: "The book cover includes a scanning electron miroscopy picture of a stepped Cu 2 O surface (large circular area) kindly provided by Marc Willinger, Fritz-Haber Institute Berlin." 2 PREFACE TO THE SECOND EDITIONAs a result of feedback from readers of the first edition of this book and from colleagues, this second edition is a major revision which goes beyond mere error correction and minor clarification.While the book has been modified and extended greatly, the initial concept of a combined tutorial introduction into surface crystallography, with bulk crystallography as a basis, and an overview of modern subjects for the advanced researcher is still conserved. Many sections have been updated for completeness and extended to include recent developments due to the advent of new and more refined measuring techniques.The second edition is also targeted at researchers working on graphene and other weakly adsorbing overlayers which form large size moiré patterns observed by scanning tunneling and electron microscopy. They might appreciate the new section on moiré lattice formation which until now has not been available in textbook format. Nanoparticle physicists and materials scientists who are interested in structure information of very small particles and seek to connect e.g. electronic and magnetic properties with structural data, may benefit from the sections about nanoparticles, crystal spheres, nanotubes, as well as faceting. This might also interest catalytic chemists trying to interpret chemical behavior such as reactivity by structural information of small particles.Specific items which have been newly added or revised include -nanoclusters and crystallites, giving a basic overview on structure details, -incommensurate and quasicrystals, being treated on a common basis, -basics of epitaxy and crystal growth, -further details on chiral surfaces and adsorbates, -the theoretical treatment of high-order commensurate (HOC) overlayers, -the theory of interference lattices and moiré patterns, -the geometric structure of high-symmetry adsorbate sites, -more detailed computational algorithms in the appendices, -structure database formats, documenting measured surface structures.Furthermore, the list of references to original publications and books on specific subjects has been revised and extended to account for more recent experimental and theoretical developments. The set of exercises concluding each section has been substantially enlarged following suggestions by readers of the first book edition. All structure graphics in this book have been created using the interac- PREFACE TO THE FIRST EDITIONThe objective of this book is to provide students and researchers with the crystallographic foundations necessary to understand structure and symmetry of surfaces and interfaces of crystalline materials. This includes macroscopic single crystals as well as crystalline nanoparticles. Knowledge of their geometric properties is a prerequisite for the interpretation of corresponding experimental and theoretica...

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“…18 The reflection matrices for the bulk crystal were calculated by Pendry's layer-doubling method. 17 The agreement between experimental and calculated LEED intensities is quantified by an R factor defined [20][21][22] as…”

Section: B Leed Calculations and R Factor Analysismentioning

confidence: 99%

Structure of the (111) surface of bismuth: LEED analysis and first-principles calculations

et al. 2005

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The surface structure of Bi͑111͒ was investigated by low-energy electron diffraction ͑LEED͒ intensity analysis for temperatures between 140 and 313 K and by first-principles calculations. The diffraction pattern reveals a ͑1 ϫ 1͒ surface structure and LEED intensity versus energy simulations confirm that the crystal is terminated with a Bi bilayer. Excellent agreement is obtained between the calculated and measured diffraction intensities in the whole temperature range. The first interlayer spacing shows no significant relaxation at any temperature while the second interlayer spacing expands slightly. The Debye temperatures deduced from the optimized atomic vibrational amplitudes for the two topmost layers are found to be significantly lower than in the bulk. The experimental results for the relaxations agree well with those of our first-principles calculation.

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Structure of Al(111)-(√3 × √3 )R30°-Na: A LEED study

Cited by 71 publications

References 17 publications

Vibrations on Al surfaces covered by sodium

Vibrations on Al surfaces covered by sodium

Crystallography and Surface Structure: An Introduction for Surface Scientists and Nanoscientists

Structure of the (111) surface of bismuth: LEED analysis and first-principles calculations

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