Debye-Waller factor for He/Pt(111)

Bortolani, V.; Celli, V.; Franchini, Anna; Idiodi, J. O. A.; Santoro, Giuseppe E.; Kern, Klaus; Poelsema, Bene; Comşa, George

doi:10.1016/0039-6028(89)90033-2

Cited by 45 publications

(16 citation statements)

References 18 publications

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“…After substituting Eqs. (6), (89) and (90) into Eq. (87), multiplying the resulting expression by exp…”

Section: Inelastic Scattering By a Vibrating Periodic Potential The mentioning

confidence: 99%

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Selective adsorption resonances: Quantum and stochastic approaches

Sanz

Miret‐Artés

2007

Physics Reports

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“…After substituting Eqs. (6), (89) and (90) into Eq. (87), multiplying the resulting expression by exp…”

Section: Inelastic Scattering By a Vibrating Periodic Potential The mentioning

confidence: 99%

“…After Refs. [87][88][89], based on the analysis of pairwise Morse potentials, the following V Q coefficients have been used in theoretical calculations:…”

Section: The Dynamic Interaction Potentialmentioning

confidence: 99%

Selective adsorption resonances: Quantum and stochastic approaches

Sanz

Miret‐Artés

2007

Physics Reports

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“…Thus the surface Debye temperature and the root-mean-square displacement of surface atoms can be obtained from the measurement in LEED. 16,17 The intensity of the specular beam as a function of temperatures has some interesting phenomena during the annealing process of Ag/1 ML Co/Pt͑111͒ ultrathin films. The logarithm of the LEED intensity ͑ln I͒ of the specular beam versus surface temperature ͑T͒ of a 1-ML Ag ultrathin film is plotted in Fig.…”

Section: Resultsmentioning

confidence: 99%

Stabilization of Co/Pt(111) against surface alloying by Ag overlayers

et al. 1998

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The initial growth and annealing effects of Ag ultrathin films on the surface of 1 ML Co/Pt͑111͒ were investigated by low-energy electron diffraction ͑LEED͒, Auger electron spectroscopy, and ultraviolet photoelectron spectroscopy. The Ag atoms are in a layer-by-layer growth only of the first two atomic layers. Within these coverages, the adatoms of Ag are in instability when the substrate starts Co-Pt alloying. The intensity of the specular beam of LEED versus temperature increases dramatically after the alloy formation is complete. The temperature of the formation of the Co-Pt alloy becomes higher as the coverage of Ag increases. These unusual phenomena are, to our knowledge, the first observation in the systems containing three-component ultrathin films. The stress of overlayers causing the change of the alloying temperature is proposed.

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“…The measurements of the DWF in HAS from metal surfaces have been systematically performed for Ag(111) [18], Pt(111) [19], Cu(001) [20], Cu(110) [21] and Ni(115) [22] and theoretical interpretations given within two different approaches developed to treat multiphonon excitations is atom-surface collisions. The calculations of the DWF in HAS from Ag(111) [23] and Pt(111) [19] were based on a three-dimensional scattering formalism developed in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The calculations of the DWF in HAS from Ag(111) [23] and Pt(111) [19] were based on a three-dimensional scattering formalism developed in Ref. [24].…”

Section: Introductionmentioning

confidence: 99%

Debye-Waller factor in He→Cu(001) collisions revisited: the role of the interaction potentials

Šiber¹,

Gumhalter²

1997

Surface Science

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Following the recently accumulated information on the vibrational properties of the Cu(001) surface acquired through single-and multiphonon He atom scattering experiments and the concomitant theoretical investigations, we have reexamined the properties of the Debye-Waller factor (DWF) characteristic of the He→Cu(001) collisions using the recently developed fully quantal and three-dimensional model of inelastic He atom scattering from surfaces. We have focused our attention on the role which the various He-surface model potentials with their characteristic interaction parameters (range of the interaction, momentum and energy transfer cut-offs etc.) employed in the interpretation of the scattering data may play in determining the magnitude of the DWF. By combining the He-Cu(001) potential whose repulsive and attractive components are both allowed to vibrate with the substrate phonon density of states encompassing anharmonic effects, we obtain the values of the DWF which agree nicely with the experimental data without invoking additional fitting parameters. On the other hand, by taking the phonon momentum transfer cut-off Q c as an adjustable parameter, as has been frequently exploited in the literature, all the considered potentials can produce agreement with experiments by varying Q c . The magnitudes of such best fit Q c values are compared with those available in the literature and their physical significance is discussed.

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Debye-Waller factor for He/Pt(111)

Cited by 45 publications

References 18 publications

Selective adsorption resonances: Quantum and stochastic approaches

Selective adsorption resonances: Quantum and stochastic approaches

Stabilization of Co/Pt(111) against surface alloying by Ag overlayers

Debye-Waller factor in He→Cu(001) collisions revisited: the role of the interaction potentials

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