Demixing processes in AgPd superlattices

J. Dumont; R. Sporken; M. J. Verstraete; J. Ghijsen; X. Gonze

doi:10.1088/0953-8984/21/31/315002

Demixing processes in AgPd superlattices

J. Dumont, R. Sporken, M. J. Verstraete, J. Ghijsen, X. Gonze

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Résumé

The present scanning tunneling microscopy (STM) study describes the growth of silver-palladium heterostructures at room temperature, with ab initio simulations of ordered AgPd phases supporting the interpretation of STM images. First, the growth of Pd on an Ag(111) surface proceeds in a multilayer mode, leading to the formation of a columnar structure. Then, upon Ag deposition on this structure, Ag and Pd partially mix and form a two-dimensional AgPd alloy on top of the columns. Finally, an atomically flat Ag(111) surface is restored, and two-dimensional growth continues. An interpretation of this peculiar growth mode including interfacial alloying is proposed based on thermodynamic and kinetic arguments.

langue originale	Anglais
Numéro d'article	315002
journal	Journal of physics. Condensed matter
Volume	21
Numéro de publication	31
Les DOIs	https://doi.org/10.1088/0953-8984/21/31/315002
Etat de la publication	Publié - 2009

Accès au document

10.1088/0953-8984/21/31/315002

Autres fichiers et liens

Link to publication in Scopus

Microscopie à effet tunnel
Sporken, R. (!!Manager)
Plateforme technologique Morphologie, imagerie
Equipement/installations: Equipement
Synthèse, Irradiation et Analyse de Matériaux (SIAM) (2016 - ...)
Louette, P. (!!Manager), Colaux, J. (!!Manager), Felten, A. (!!Manager), Tabarrant, T. (!!Operator), COME, F. (!!Operator) & Debarsy, P.-L. (!!Manager)
Plateforme technologique Synthese, irradiation et analyse des materiaux
Equipement/installations: Plateforme technolgique

Contient cette citation

@article{ad411ccb5cdb40169895a4e954a1f564,

title = "Demixing processes in AgPd superlattices",

abstract = "The present scanning tunneling microscopy (STM) study describes the growth of silver-palladium heterostructures at room temperature, with ab initio simulations of ordered AgPd phases supporting the interpretation of STM images. First, the growth of Pd on an Ag(111) surface proceeds in a multilayer mode, leading to the formation of a columnar structure. Then, upon Ag deposition on this structure, Ag and Pd partially mix and form a two-dimensional AgPd alloy on top of the columns. Finally, an atomically flat Ag(111) surface is restored, and two-dimensional growth continues. An interpretation of this peculiar growth mode including interfacial alloying is proposed based on thermodynamic and kinetic arguments.",

author = "J. Dumont and R. Sporken and Verstraete, \{M. J.\} and J. Ghijsen and X. Gonze",

year = "2009",

doi = "10.1088/0953-8984/21/31/315002",

language = "English",

volume = "21",

journal = "Journal of physics. Condensed matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "31",

}

TY - JOUR

T1 - Demixing processes in AgPd superlattices

AU - Dumont, J.

AU - Sporken, R.

AU - Verstraete, M. J.

AU - Ghijsen, J.

AU - Gonze, X.

PY - 2009

Y1 - 2009

N2 - The present scanning tunneling microscopy (STM) study describes the growth of silver-palladium heterostructures at room temperature, with ab initio simulations of ordered AgPd phases supporting the interpretation of STM images. First, the growth of Pd on an Ag(111) surface proceeds in a multilayer mode, leading to the formation of a columnar structure. Then, upon Ag deposition on this structure, Ag and Pd partially mix and form a two-dimensional AgPd alloy on top of the columns. Finally, an atomically flat Ag(111) surface is restored, and two-dimensional growth continues. An interpretation of this peculiar growth mode including interfacial alloying is proposed based on thermodynamic and kinetic arguments.

AB - The present scanning tunneling microscopy (STM) study describes the growth of silver-palladium heterostructures at room temperature, with ab initio simulations of ordered AgPd phases supporting the interpretation of STM images. First, the growth of Pd on an Ag(111) surface proceeds in a multilayer mode, leading to the formation of a columnar structure. Then, upon Ag deposition on this structure, Ag and Pd partially mix and form a two-dimensional AgPd alloy on top of the columns. Finally, an atomically flat Ag(111) surface is restored, and two-dimensional growth continues. An interpretation of this peculiar growth mode including interfacial alloying is proposed based on thermodynamic and kinetic arguments.

UR - https://www.scopus.com/pages/publications/70249106066

U2 - 10.1088/0953-8984/21/31/315002

DO - 10.1088/0953-8984/21/31/315002

M3 - Article

SN - 0953-8984

VL - 21

JO - Journal of physics. Condensed matter

JF - Journal of physics. Condensed matter

IS - 31

M1 - 315002

ER -

Demixing processes in AgPd superlattices

Résumé

Accès au document

Autres fichiers et liens

Empreinte digitale

Équipement

Microscopie à effet tunnel

Synthèse, Irradiation et Analyse de Matériaux (SIAM) (2016 - ...)

Contient cette citation