| 1. |
- Bennich, P, et al.
(författare)
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Photoemission study of K on graphite
- 1999
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 59:12, s. 8292-8304
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The physical and electronic structure of the dispersed and (2 x 2) phases of K/graphite have been characterized by valence and core-level photoemission. Charge transfer from K to graphite is found to occur at all coverages, and includes transfer of charge
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| 2. |
- Puglia, C, et al.
(författare)
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A photoemission and XAS study of oxygen coadsorbed with a (2x2) layer of K on graphite
- 1997
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Ingår i: SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0039-6028. ; 383:2-3, s. 149-161
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We have studied the coadsorption of oxygen with a (2 x 2) monolayer of K on graphite. At least three different adsorption phases for oxygen have been found. Different spectroscopic techniques have been used in order to identify the different oxygen specie
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| 3. |
- Sandell, A, et al.
(författare)
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Bonding of an isolated K atom to a surface: Experiment and theory
- 1997
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Ingår i: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. - 0031-9007. ; 78:26, s. 4994-4997
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We present a new and general technique with which the local properties of the unoccupied states of an adsorbed alkali atom in the low coverage limit can be studied. The method, based on a combination of experimental core level spectroscopy data and calcul
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| 4. |
- Sandell, A, et al.
(författare)
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Nature of the ns-derived states for an isolated alkali atom on a surface
- 1999
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Ingår i: SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0039-6028. ; 429:1-3, s. 309-319
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- It has recently been shown (for K/graphite) that experimental core level spectroscopy data for adsorbed Ar combined with calculations is a most valuable tool in order to obtain information about the alkali-derived unoccupied density-of-states [A. Sandell
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| 5. |
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| 6. |
- Nilsson, A, et al.
(författare)
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An atom-specific look at the surface chemical bond
- 1997
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Ingår i: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. - 0031-9007. ; 78:14, s. 2847-2850
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- High resolution x-ray emission spectroscopy is shown to reveal unprecedented details of the chemical bond formed between a molecule and a transition metal surface. An atom and symmetry projected view of the bonding orbitals is obtained. We find that all o
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| 7. |
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| 8. |
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| 9. |
- Nilsson, A, et al.
(författare)
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Local probing of the surface chemical bond using X-ray emission spectroscopy
- 1997
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Ingår i: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING. - : SPRINGER VERLAG. - 0947-8396. ; 65:2, s. 147-154
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- X-ray emission spectroscopy applied to adsorbate systems is shown to reveal new details of the chemical bond formed at surfaces. An atom and symmetry projected view of the bonding orbitals is obtained. We will present recent studies of N-2 and CO on Ni(10
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| 10. |
- Puglia, Carla, et al.
(författare)
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Core level spectroscopy study of N-2 adsorbed on (2x2)K/graphite
- 1998
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Ingår i: SURFACE SCIENCE. - 0039-6028. ; 414:1-2, s. 118-130
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We report a study of N-2/(2 x 2)K/graphite at 25 K using X-ray photoemission, X-ray absorption (XAS), ultraviolet photoemission, autoionization and Auger spectroscopies. At this temperature me found that N-2 physisorbs. Comparisons with the physisorbed sy
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| 11. |
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| 12. |
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| 13. |
- Weinelt, M, et al.
(författare)
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Electronic structure of benzene on Ni(100) and Cu(110): An x-ray-spectroscopy study
- 1998
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 58:11, s. 7351-7360
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The valence electronic structure of benzene chemisorbed on Ni(100) and Cu(110) has been studied using angle-dependent x-ray emission and x-ray absorption spectroscopy. These techniques allow us to resolve the benzene p contributions involved in the chemic
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| 14. |
- Wiell, T, et al.
(författare)
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Local aspects of the adsorbate-substrate chemical bond in N/Cu(100) and O/Cu(100)
- 1998
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 58:3, s. 1655-1664
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Both the occupied and unoccupied adsorbate valence states have been probed by x-ray emission and x-ray absorption spectroscopies for N/Cu(100) and the low coverage phase of O/Cu(100). By carrying out experiments using two different measurement geometries,
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