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Surface core level shift on Be( 112̄0)

Johansson, L. I.; Johansson, H. I P; Lundgren, E. LU ; Andersen, J. N. LU and Nyholm, R. LU (1994) In Surface Science 321(3).
Abstract

A photoemission study of the Be(112̄0) surface carried out at a sample temperature of 100 K is reported. A surface shifted Be 1s component, having a shift of - 410 meV, is resolved on this surface. The extracted surface to bulk intensity ratio indicate that this component originates from atoms in the surface layer only. This is opposite to previous observations on both the close-packed Be(0001) surface and the Be(101̄0) surface where sub-surface shifted Be 1s levels were unambiguously identified. Among these three surfaces a surface layer atom is expected to have the lowest coordination on the (112̄0) surface but the surface layer shift is found to be smallest on this surface. Compared to findings on... (More)

A photoemission study of the Be(112̄0) surface carried out at a sample temperature of 100 K is reported. A surface shifted Be 1s component, having a shift of - 410 meV, is resolved on this surface. The extracted surface to bulk intensity ratio indicate that this component originates from atoms in the surface layer only. This is opposite to previous observations on both the close-packed Be(0001) surface and the Be(101̄0) surface where sub-surface shifted Be 1s levels were unambiguously identified. Among these three surfaces a surface layer atom is expected to have the lowest coordination on the (112̄0) surface but the surface layer shift is found to be smallest on this surface. Compared to findings on other metals this is unusual and reasons contributing to this behaviour are suggested and discussed. © 1994.

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author
organization
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type
Contribution to journal
publication status
published
in
Surface Science
volume
321
issue
3
publisher
Elsevier
external identifiers
  • Scopus:0028700070
ISSN
0039-6028
DOI
10.1016/0039-6028(94)90178-3
language
English
LU publication?
yes
id
3ef40111-cc22-4775-9694-1f5684265840
date added to LUP
2016-04-29 11:06:39
date last changed
2016-05-21 11:55:48
@misc{3ef40111-cc22-4775-9694-1f5684265840,
  abstract     = {<p>A photoemission study of the Be(112&amp;#x0304;0) surface carried out at a sample temperature of 100 K is reported. A surface shifted Be 1s component, having a shift of - 410 meV, is resolved on this surface. The extracted surface to bulk intensity ratio indicate that this component originates from atoms in the surface layer only. This is opposite to previous observations on both the close-packed Be(0001) surface and the Be(101&amp;#x0304;0) surface where sub-surface shifted Be 1s levels were unambiguously identified. Among these three surfaces a surface layer atom is expected to have the lowest coordination on the (112&amp;#x0304;0) surface but the surface layer shift is found to be smallest on this surface. Compared to findings on other metals this is unusual and reasons contributing to this behaviour are suggested and discussed. © 1994.</p>},
  author       = {Johansson, L. I. and Johansson, H. I P and Lundgren, E. and Andersen, J. N. and Nyholm, R.},
  issn         = {0039-6028},
  language     = {eng},
  month        = {12},
  number       = {3},
  publisher    = {ARRAY(0x9001b20)},
  series       = {Surface Science},
  title        = {Surface core level shift on Be( 112̄0)},
  url          = {http://dx.doi.org/10.1016/0039-6028(94)90178-3},
  volume       = {321},
  year         = {1994},
}