Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy

Alexander Murdoch; A. G. Trant; J. Gustafson; T. E. Jones; T. C. Q. Noakes; P. Bailey; C. J. Baddeley

doi:10.1016/j.susc.2012.10.009

Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy

Alexander Murdoch, A. G. Trant, J. Gustafson, T. E. Jones, T. C. Q. Noakes, P. Bailey, C. J. Baddeley^*

^*Corresponding author for this work

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

Abstract

The growth and annealing behaviour of ultrathin Co films on Pd{111} have been investigated by medium energy ion scattering and scanning tunnelling microscopy. Incremental annealing of Co/Pd{111} results in intermixing and the formation of an ordered CoPd alloy at 560 K. Under these conditions, MEIS reveals that the top three layers consist of an approximately equimolar mixture of Co and Pd. STM and LEED provide evidence that the overlayer has a p(2 × 1) registry leading to the conclusion that the surface is terminated in the {111} plane of the CoPd L10 structure.

Original language	English
Pages (from-to)	212-219
Number of pages	8
Journal	Surface Science
Volume	608
Early online date	18 Oct 2012
DOIs	https://doi.org/10.1016/j.susc.2012.10.009
Publication status	Published - Feb 2013

Keywords

METHANE
CATALYSTS
Surface segregation
THIN-FILMS
Medium energy ion scattering
Scanning tunnelling microscopy
HYDROGENATION
SURFACE
Cobalt
SOL/GEL METHOD
CU(111)
GROWTH
Alloys
ULTRATHIN CO FILMS
Palladium
PD(111)

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10.1016/j.susc.2012.10.009

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@article{68845ef87f374ea195f01496775f12a8,

title = "Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy",

abstract = "The growth and annealing behaviour of ultrathin Co films on Pd{111} have been investigated by medium energy ion scattering and scanning tunnelling microscopy. Incremental annealing of Co/Pd{111} results in intermixing and the formation of an ordered CoPd alloy at 560 K. Under these conditions, MEIS reveals that the top three layers consist of an approximately equimolar mixture of Co and Pd. STM and LEED provide evidence that the overlayer has a p(2 × 1) registry leading to the conclusion that the surface is terminated in the {111} plane of the CoPd L10 structure.",

keywords = "METHANE, CATALYSTS, Surface segregation, THIN-FILMS, Medium energy ion scattering, Scanning tunnelling microscopy, HYDROGENATION, SURFACE, Cobalt, SOL/GEL METHOD, CU(111), GROWTH, Alloys, ULTRATHIN CO FILMS, Palladium, PD(111)",

author = "Alexander Murdoch and Trant, {A. G.} and J. Gustafson and Jones, {T. E.} and Noakes, {T. C. Q.} and P. Bailey and Baddeley, {C. J.}",

year = "2013",

month = feb,

doi = "10.1016/j.susc.2012.10.009",

language = "English",

volume = "608",

pages = "212--219",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

}

TY - JOUR

T1 - Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy

AU - Murdoch, Alexander

AU - Trant, A. G.

AU - Gustafson, J.

AU - Jones, T. E.

AU - Noakes, T. C. Q.

AU - Bailey, P.

AU - Baddeley, C. J.

PY - 2013/2

Y1 - 2013/2

N2 - The growth and annealing behaviour of ultrathin Co films on Pd{111} have been investigated by medium energy ion scattering and scanning tunnelling microscopy. Incremental annealing of Co/Pd{111} results in intermixing and the formation of an ordered CoPd alloy at 560 K. Under these conditions, MEIS reveals that the top three layers consist of an approximately equimolar mixture of Co and Pd. STM and LEED provide evidence that the overlayer has a p(2 × 1) registry leading to the conclusion that the surface is terminated in the {111} plane of the CoPd L10 structure.

AB - The growth and annealing behaviour of ultrathin Co films on Pd{111} have been investigated by medium energy ion scattering and scanning tunnelling microscopy. Incremental annealing of Co/Pd{111} results in intermixing and the formation of an ordered CoPd alloy at 560 K. Under these conditions, MEIS reveals that the top three layers consist of an approximately equimolar mixture of Co and Pd. STM and LEED provide evidence that the overlayer has a p(2 × 1) registry leading to the conclusion that the surface is terminated in the {111} plane of the CoPd L10 structure.

KW - METHANE

KW - CATALYSTS

KW - Surface segregation

KW - THIN-FILMS

KW - Medium energy ion scattering

KW - Scanning tunnelling microscopy

KW - HYDROGENATION

KW - SURFACE

KW - Cobalt

KW - SOL/GEL METHOD

KW - CU(111)

KW - GROWTH

KW - Alloys

KW - ULTRATHIN CO FILMS

KW - Palladium

KW - PD(111)

UR - http://www.scopus.com/inward/record.url?scp=84870432024&partnerID=8YFLogxK

UR - http://www.sciencedirect.com/science/article/pii/S0039602812003792

U2 - 10.1016/j.susc.2012.10.009

DO - 10.1016/j.susc.2012.10.009

M3 - Article

SN - 0039-6028

VL - 608

SP - 212

EP - 219

JO - Surface Science

JF - Surface Science

ER -

Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy

Abstract

Keywords

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MEIS Investigations EP/E047580/1: MEIS investigations of adsorbate induced segregation at the bimetallic surface of single crystal alloys and supported nanoparticles

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Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

MEIS Investigations EP/E047580/1: MEIS investigations of adsorbate induced segregation at the bimetallic surface of single crystal alloys and supported nanoparticles

Cite this