| 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. |
- Maxwell, AJ, et al.
(författare)
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Electronic structure study of KxC60 compounds with x>6
- 1995
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Ingår i: CHEMICAL PHYSICS LETTERS. - : ELSEVIER SCIENCE BV. ; 247:3, s. 257-263
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We present C 1s X-ray absorption and photoemission results for KxC60 with x > 6, the so-called 'superfullerides'. These are the first measurements of the unoccupied valence band for these systems and confirm that more than six electrons can be transferred
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| 6. |
- Rudolf, P, et al.
(författare)
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Studies of fullerenes by the excitation, emission, and scattering of electrons
- 1999
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Ingår i: Journal of Electron Spectroscopy and Related Phenomena. - 0368-2048 .- 1873-2526. ; 100:1-3, s. 409-433
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents an overview of how electron spectroscopies have contributed to advances in fullerene research. In particular, we illustrate the vital role these techniques have played in improving our understanding of the importance of strong electronic correlation and of electron-phonon coupling in these materials, in the derivation of electron hopping rates, in providing a direct determination of charge transfer and hybridisation in both fullerene salts and adsorbed fullerenes and in determining the optical gap of these systems. We discuss systems of increasing complexity, starting with C60 in the gas phase and in the solid state, and moving on to C60 salts and to C60 adsorbed on surfaces. Finally we look at both higher fullerenes and fullerenes with a heteroatom either on or inside the cage.
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