Theory of coherent and incoherent back-scattering of electrons at a disordered surface and its relationship with short-range order and local geometry in absorbed overlayers

Bosse, J.; López, Jesús María Rincón; Rousseau, J.; Zasada, I.

doi:10.1088/0022-3719/21/3/012

Cited by 15 publications

(21 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The model of the adsorption of atoms and molecules adsorbed on the metallic surface (electrode surface) can be formulated in terms of the occupation operators expressed by means of pseudospins which can be treated as the surface roughness description [1,2]. This theory is based upon the introduction of fieldlike operators which define the occupation of any chemisorption site of the substrate.…”

Section: Models Of Rough and Decorated Surfacesmentioning

confidence: 99%

See 1 more Smart Citation

Electrode Surface Roughness

Romanowski

Wojtczak

1997

Green Functions in Electrochemistry

View full text Add to dashboard Cite

Section: Models Of Rough and Decorated Surfacesmentioning

confidence: 99%

“…The incoherent intensity can be experimentally detected and it has been theoretically derived in [2) by assuming that all sites j are statistically equivalent, namely On the other hand, we fulfil the trivial relation for any operator A acting on the vectors of the configuration vectorial space, namely …”

Section: Models Of Rough and Decorated Surfacesmentioning

confidence: 99%

Electrode Surface Roughness

Romanowski

Wojtczak

1997

Green Functions in Electrochemistry

View full text Add to dashboard Cite

“…Earlier, Le Bossé et al [7] gave a general expression of the incoherent intensity of electrons backscattered at a single crystal surface partially covered with a disordered o verlayer where is the Fourier transform of the site-occupancy pair correlation function T0j (p, p') which is defined on the substrate surface lattice as follows:…”

Section: Outline Of the Diffuse Low-energy Electron Diffraction Problemsmentioning

confidence: 99%

Monte Carlo Simulation of Partially Ordered Atomic Layers Adsorbed on the Monocristalline Surfaces

et al. 1993

View full text Add to dashboard Cite

The calculations of the correlations functions and structure factors are performed by means of the Monte Carlo simulation. The results for O/Ni(001) system are presented and compared with those obtained using self-consistent molecułar field approximation and cumulant expansion method. The simulation for more complex system CO/Pt(111) is also performed. The calculations of the topołogical correlations allow us to find the coverage dependence of the incoherent scattering amplitude which can be experimentally detected.

show abstract

“…Different approaches have been proposed and put into practice to calculate the diffuse intensity distribution [2,3]. One of the most general theoretical descriptions of coherent and incoherent multiple-scattering of electrons at a single-crystal surface partially covered with a disordered overlayer was presented by Le Bossé et al [4]. A general expression of the incoherent intensity (DLEED intensity) of electrons back-scattered at the substrate/disordered adsorbate system was given:…”

Section: Introductionmentioning

confidence: 99%

“…In the first stage the average of scattered wave fields has to be performed. For this purpose, the well known average t-matrix approximation (ATA) is used [4]. In the second stage the incoherent part of the wave scattered at the disordered overlayer is evaluated.…”

Section: Introductionmentioning

confidence: 99%

Theory of incoherent spin dependent scattering of electrons at a disordered surface

Zasada¹

2000

J. Phys.: Condens. Matter

Self Cite

View full text Add to dashboard Cite

A theoretical description of incoherent spin dependent multiple scattering of electrons at a single-crystal surface partially covered with a disordered overlayer is reported. A formalism in which occupation operators specify the occupancy of a chemisorption site is used for the statistical description of a disordered adlayer. The theory is based upon the concepts used in multiple-scattering DLEED theory. In the present considerations spin effects are introduced to this theory by using the time independent Dirac equation. Thus, a simple expression for incoherent spin dependent intensity is obtained. The spin-orbit induced `up/down' asymmetry is then calculated. As an example the particular case of CO/Pt(111) is examined. It is found that diffuse SPLEED is sensitive to the geometrical parameters characterizing the substrate/disordered adsorbate system as well as to the parameters related to the statistical distribution of the occupied chemisorption sites. It is demonstrated that the method is applicable to any disordered surface suitable for DLEED investigation and in this way enlarges the number of experimental data convenient for disordered surface structure analysis.

show abstract

Theory of coherent and incoherent back-scattering of electrons at a disordered surface and its relationship with short-range order and local geometry in absorbed overlayers

Cited by 15 publications

References 13 publications

Electrode Surface Roughness

Electrode Surface Roughness

Monte Carlo Simulation of Partially Ordered Atomic Layers Adsorbed on the Monocristalline Surfaces

Theory of incoherent spin dependent scattering of electrons at a disordered surface

Contact Info

Product

Resources

About