SwePub - sökning: WFRF:(KARIS O)

Numrering	Referens	Omslagsbild	Hitta
1.	Bennich, P, et al. (författare) Nature of the surface chemical bond in N-2 On Ni(100) studied by x-ray-emission spectroscopy and ab initio calculations 1998 Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 57:15, s. 9274-9284 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The electronic structure of the system N-2/Ni(100) has been studied by means of angle-resolved x-ray-emission spectroscopy (XES) and ab initio calculations. XES allows a symmetry-resolved decomposition of the 2p density of states projected on each N atom.
2.	Fohlisch, A, et al. (författare) Beyond the chemical shift: Vibrationally resolved core-level photoelectron spectra of adsorbed CO 1998 Ingår i: PHYSICAL REVIEW LETTERS. - : AMERICAN PHYSICAL SOC. - 0031-9007. ; 81:8, s. 1730-1733 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract Vibrational fine structure has been observed in the Cls and O1s photoelectron lines of CO adsorbed on Ni(100). This allows a detailed separation of vibrational and electronic contributions to the line profile. The main line is found to represent the fully
3.	Fohlisch, A, et al. (författare) Franck-Condon breakdown in core-level photoelectron spectroscopy of chemisorbed CO 1999 Ingår i: CHEMICAL PHYSICS LETTERS. - : ELSEVIER SCIENCE BV. - 0009-2614. ; 315:3-4, s. 194-200 Tidskriftsartikel (refereegranskat)abstract The photon energy dependence of the vibrational fine structure in the Cls and Ols X-ray photoelectron main lines of chemisorbed CO on Ni(100) and Ru(0001) has been measured from 6 to 150 eV above the core-level thresholds. Significant deviations from the
4.	Fohlisch, A, et al. (författare) Vibrational fine structure in core level photoelectron lines of adsorbed molecules: System dependent effects 1999 Ingår i: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - : ELSEVIER SCIENCE BV. - 0368-2048. ; 103, s. 303-308 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract System dependent effects in resolving vibrational fine structure in the corn-level lines of adsorbates are discussed. The example is carbon monoxide on transition metals. The importance of dynamic metallic screening is exemplified and the role of shake-up
5.	Hasselstrom, J, et al. (författare) Ammonia adsorbed on Cu(110): An angle resolved x-ray spectroscopic and ab initio study 1999 Ingår i: JOURNAL OF CHEMICAL PHYSICS. - : AMER INST PHYSICS. - 0021-9606. ; 110:10, s. 4880-4890 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We present a study of a monolayer of ammonia (NH3) adsorbed on Cu(110) using core level spectroscopies in combination with ab initio calculations based on density functional theory. In particular, x-ray emission spectroscopy has been applied, providing an
6.	Hasselstrom, J, et al. (författare) The adsorption structure of glycine adsorbed on Cu(110); comparison with formate and acetate/Cu(110) 1998 Ingår i: SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0039-6028. ; 407:1-3, s. 221-236 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The molecular orientation of an ordered monolayer of glycine adsorbed on Cu(110) has been studied using X-ray Photoelectron Spectroscopy (XPS), Near Edge X-ray Absorption Fine Structure (NEXAFS), X-ray Photoelectron Diffraction (XPD), Low-Energy Electron
7.	Karis, O, et al. (författare) Manifestation of the paramagnetic splitting of physisorbed O-2 in core and valence spectroscopies 1996 Ingår i: SURFACE SCIENCE. - 0039-6028. ; 352, s. 511-517 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We have investigated the core excited sigma* resonance region in 1 monolayer of O-2, physisorbed on several substrates. Comparisons with the paramagnetic splitting obtained in X-ray photoelectron spectroscopy (XPS) and in ultraviolet photoelectron spectro
8.	Karis, O, et al. (författare) One-step and two-step description of deexcitation processes in weakly interacting systems 1996 Ingår i: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. ; 76:8, s. 1380-1383 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The origin of one- and two-step behavior of core-hole decay processes is identified in connection with high resolution autoionization spectra for Ar/Pt(111). The spectra simultaneously show features of the two types (resonant Raman vs Auger-like behavior)
9.	Magnuson, Martin, 1965-, et al. (författare) Coherent and Incoherent Processes in resonant Photoemission 1997 Ingår i: Advanced Light Source. - California, USA : Ernest Orlando Lawrence Berkeley National Laboratory, University of California Berkeley. ; 65:2, s. 159-167 Bokkapitel (populärvet., debatt m.m.)
10.	Martensson, N, et al. (författare) Coherent and incoherent processes in resonant photoemission 1997 Ingår i: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING. - 0947-8396. ; 65:2, s. 159-167 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The basis for resonant photoemission is discussed in connection with data for a physisorption system, Ar/Pt(111) and a 3d transition metal, Ni(100). For Ar/Pt(111) the quasi-localized character of the intermediate state leads to two types of features in t
11.	Martensson, N, et al. (författare) Resonant processes in the soft X-ray regime 1999 Ingår i: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - : ELSEVIER SCIENCE BV. - 0368-2048. ; 100, s. 379-393 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The phenomenon of resonant excitation of X-ray and electron emission spectra is discussed. The basic phenomena are demonstrated for Ni metal. The importance of the localization of the intermediate state is discussed in connection with spectra for adsorbed
12.	MAXWELL, AJ, et al. (författare) C-60 ON AL(111) - COVALENT BONDING AND SURFACE RECONSTRUCTION 1995 Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMER INST PHYSICS. ; 52:8 Annan publikation (övrigt vetenskapligt/konstnärligt)abstract We present photoemission and C 1s photoabsorption data for an annealed monolayer C-60/Al(111), which show that a strong covalent bond is formed between the C-60 molecules and the substrate. Low-energy electron-diffraction and scanning tunneling microscopy
13.	Nilsson, A, et al. (författare) An atom-specific look at the surface chemical bond 1997 Ingår i: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. - 0031-9007. ; 78:14, s. 2847-2850 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
14.	Nilsson, A, et al. (författare) Local probing of the surface chemical bond using X-ray emission spectroscopy 1997 Ingår i: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING. - : SPRINGER VERLAG. - 0947-8396. ; 65:2, s. 147-154 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
15.	PUGLIA, C, et al. (författare) PHYSISORBED, CHEMISORBED AND DISSOCIATED O-2 ON PT(111) STUDIED BY DIFFERENT CORE-LEVEL SPECTROSCOPY METHODS 1995 Ingår i: SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0039-6028. ; 342:1-3, s. 119-133 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract For O-2/Pt(111) we have found four different adsorption phases which are formed at different substrate temperatures. At about 25 K the oxygen molecules physisorb on the surface. Two chemisorbed phases are observed at 90 and 135 K, respectively. An atomic
16.	Triguero, L, et al. (författare) Resonant soft-x-ray emission spectroscopy of surface adsorbates: Theory, computations, and measurements of ethylene and benzene on Cu(110) 1999 Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 59:7, s. 5189-5200 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract Soft-x-ray emission spectra from C2H4/Cu(110) and C6H6/Cu(110) have been obtained for two excitation energies, resonant and nonresonant, and resolved in all three spatial components (x,y,z). The one-step theory for resonant soft x-ray spectroscopy and Ram
17.	Weinelt, M, et al. (författare) Electronic structure of benzene on Ni(100) and Cu(110): An x-ray-spectroscopy study 1998 Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 58:11, s. 7351-7360 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
18.	Weinelt, M, et al. (författare) Resonant photoemission and resonant inelastic x-ray scattering - coherent vs. incoherent processes 1996 Ingår i: Raman emission by X-ray scattering. - : World Scientific. - 9789814547253 Konferensbidrag (refereegranskat)
19.	Weinelt, M., et al. (författare) Resonant Photoemission at the 2p Edges of Ni: Resonant Raman and Interference Effects 1997 Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 78:5, s. 967-970 Tidskriftsartikel (refereegranskat)abstract Unambiguous evidence for resonant photoemission in Ni is presented. Interference effects are identified at the 2p edges for the valence band and the 6 eV satellite. A rapid transition from a resonant Raman to an Auger-like regime shows that the core-excited states above threshold are not localized enough to significantly enhance the photoemission intensity, implying a large fraction of incoherent intensity. The results indicate that the appearance of interference effects does not require strong localization of the intermediate state.
20.	Weinelt, M, et al. (författare) Resonant photoemission at the 2p edges of Ni: Resonant Raman and interference effects 1997 Ingår i: PHYSICAL REVIEW LETTERS. - 0031-9007. ; 78:5, s. 967-970 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract Unambiguous evidence for resonant photoemission in Ni is presented. Interference effects are identified at the 2p edges for the valence band and the 6 eV satellite. A rapid transition from a resonant Raman to an Auger-like regime shows that the core-excit

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