Auger photoelectron coincidence spectroscopy of the 2p1/2 line in coincidence with the L3-M45M45 peak of copper

C. A. Creagh; S. M. Thurgate; R. P. Craig; C. P. Lund

Auger photoelectron coincidence spectroscopy of the 2p1/2 line in coincidence with the L3-M45M45 peak of copper

C. A. Creagh^*, S. M. Thurgate, R. P. Craig, C. P. Lund

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

As new surface analytical equipment becomes available, it is increasingly important to understand the physics behind the small satellites and features in electron spectra. Auger photoelectron coincidence spectroscopy (APECS) has been used to study the 2p_1/2 photoelectron line (electrons from the L₂ level) of copper in coincidence with the L₃-M_4,5 M_4,5Auger peak. The intensity in coincidence in the L₃-M_4,5M_4,5 peak is due to a Coster-Kronig transition, L₂-L₃-M_4,5M_4,5(M_4,5). We have found that there is a shift in the position of the photoelectron line when the Auger analyser is fixed at different positions in the low kinetic energy tail of the Auger peak. This is an unusual effect, which we attribute to an electrostatic interaction between the outgoing electrons, in a form of post-collisional interaction.

Original language	English
Pages (from-to)	297-304
Number of pages	8
Journal	Surface Science
Volume	432
Issue number	3
Publication status	Published - 20 Jul 1999

Keywords

APECS
Auger spectroscopy
Coincidence spectroscopy
Copper
Photoelectron spectroscopy

Cite this

@article{51136c34c8f147b09d53e504302bc749,

title = "Auger photoelectron coincidence spectroscopy of the 2p1/2 line in coincidence with the L3-M45M45 peak of copper",

abstract = "As new surface analytical equipment becomes available, it is increasingly important to understand the physics behind the small satellites and features in electron spectra. Auger photoelectron coincidence spectroscopy (APECS) has been used to study the 2p1/2 photoelectron line (electrons from the L2 level) of copper in coincidence with the L3-M4,5 M4,5Auger peak. The intensity in coincidence in the L3-M4,5M4,5 peak is due to a Coster-Kronig transition, L2-L3-M4,5M4,5(M4,5). We have found that there is a shift in the position of the photoelectron line when the Auger analyser is fixed at different positions in the low kinetic energy tail of the Auger peak. This is an unusual effect, which we attribute to an electrostatic interaction between the outgoing electrons, in a form of post-collisional interaction.",

keywords = "APECS, Auger spectroscopy, Coincidence spectroscopy, Copper, Photoelectron spectroscopy",

author = "Creagh, {C. A.} and Thurgate, {S. M.} and Craig, {R. P.} and Lund, {C. P.}",

year = "1999",

month = jul,

day = "20",

language = "English",

volume = "432",

pages = "297--304",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

number = "3",

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TY - JOUR

T1 - Auger photoelectron coincidence spectroscopy of the 2p1/2 line in coincidence with the L3-M45M45 peak of copper

AU - Creagh, C. A.

AU - Thurgate, S. M.

AU - Craig, R. P.

AU - Lund, C. P.

PY - 1999/7/20

Y1 - 1999/7/20

N2 - As new surface analytical equipment becomes available, it is increasingly important to understand the physics behind the small satellites and features in electron spectra. Auger photoelectron coincidence spectroscopy (APECS) has been used to study the 2p1/2 photoelectron line (electrons from the L2 level) of copper in coincidence with the L3-M4,5 M4,5Auger peak. The intensity in coincidence in the L3-M4,5M4,5 peak is due to a Coster-Kronig transition, L2-L3-M4,5M4,5(M4,5). We have found that there is a shift in the position of the photoelectron line when the Auger analyser is fixed at different positions in the low kinetic energy tail of the Auger peak. This is an unusual effect, which we attribute to an electrostatic interaction between the outgoing electrons, in a form of post-collisional interaction.

AB - As new surface analytical equipment becomes available, it is increasingly important to understand the physics behind the small satellites and features in electron spectra. Auger photoelectron coincidence spectroscopy (APECS) has been used to study the 2p1/2 photoelectron line (electrons from the L2 level) of copper in coincidence with the L3-M4,5 M4,5Auger peak. The intensity in coincidence in the L3-M4,5M4,5 peak is due to a Coster-Kronig transition, L2-L3-M4,5M4,5(M4,5). We have found that there is a shift in the position of the photoelectron line when the Auger analyser is fixed at different positions in the low kinetic energy tail of the Auger peak. This is an unusual effect, which we attribute to an electrostatic interaction between the outgoing electrons, in a form of post-collisional interaction.

KW - APECS

KW - Auger spectroscopy

KW - Coincidence spectroscopy

KW - Copper

KW - Photoelectron spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=0032690295&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032690295

SN - 0039-6028

VL - 432

SP - 297

EP - 304

JO - Surface Science

JF - Surface Science

IS - 3

ER -

Auger photoelectron coincidence spectroscopy of the 2p1/2 line in coincidence with the L3-M45M45 peak of copper

Abstract

Keywords

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