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. |
- Puglia, C, et al.
(författare)
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XPS and XAS study of oxygen coadsorbed with a dispersed phase of K on graphite
- 2001
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Ingår i: SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. ; 488:1-2
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The adsorption of O-2 onto a dispersed (low coverage) phase of K on graphite has been characterized by X-ray photoemission and X-ray absorption spectroscopy. We identify two oxygen adsorption phases before physisorbed oxygen appears. The first species dom
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4. |
- 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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5. |
- 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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6. |
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7. |
- Fohlisch, A, et al.
(författare)
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Ground-state interpretation of x-ray emission spectroscopy on adsorbates: CO adsorbed on Cu(100)
- 2000
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Ingår i: PHYSICAL REVIEW B. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 61:23, s. 16229-16240
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Tidskriftsartikel (refereegranskat)abstract
- The application of resonant inelastic x-ray scattering and resonantly excited x-ray emission to adsorbates has evolved into a powerful technique to investigate the valence electronic structure of adsorbates in an atom-specific and orbital-symmetry-selecti
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8. |
- Fohlisch, A, et al.
(författare)
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The bonding of CO to metal surfaces
- 2000
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Ingår i: JOURNAL OF CHEMICAL PHYSICS. - : AMER INST PHYSICS. - 0021-9606. ; 112:4, s. 1946-1958
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Tidskriftsartikel (refereegranskat)abstract
- The atom and symmetry specific properties of x-ray emission spectroscopy have been applied to the investigation of CO adsorbed on Ni(100) and Cu(100) surfaces. In comparison to ab initio electronic structure calculations, obtained in density functional th
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9. |
- Jonsson, Gunnar, et al.
(författare)
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Compensation for Non-normal Ejection of Large Molecular Ions in Plasma Desorption Mass Spectrometry
- 1989
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Ingår i: Rapid Communications in Mass Spectrometry. - : Wiley. - 0951-4198 .- 1097-0231. ; 3:6, s. 190-191
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Tidskriftsartikel (refereegranskat)abstract
- By introducing an Einzel lens in the field-free region of a straight time-of-flight mass spectrometer, secondary ions of large mass can be detected more efficiently in plasma-desorption mass spectrometry. This procedure compensates for the large radial velocities of large molecular ions recently observed experimentally. It is shown that large molecular ions like those of lysozyme can now be detected more efficiently, and larger molecular ions than observed before in plasma-desorption mass spectrometry (like those of bovine ovalbumin, mol. wt 45 000) can now be studied.
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10. |
- 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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