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Your search keyword '"Wassdahl, N"' showing total 23 results
Start Over Author "Wassdahl, N" Publisher amer inst physics
23 results on '"Wassdahl, N"'

1. The bonding of simple carboxylic acids on Cu(110)

Author

Karis, O, Hasselstrom, J, Wassdahl, N, Weinelt, M, Nilsson, A, Nyberg, M, Pettersson, LGM, Stohr, J, Samant, MG, Karis, O, Hasselstrom, J, Wassdahl, N, Weinelt, M, Nilsson, A, Nyberg, M, Pettersson, LGM, Stohr, J, and Samant, MG

Abstract

We present a study of the bonding of formate (HCOO) and acetate (CH3COO) chemisorbed on Cu(110) using core level spectroscopies in combination with theoretical calculations. For the first time, we apply x-ray emission spectroscopy (XES) to these systems., Addresses: Karis O, Univ Uppsala, Dept Phys, Box 530, S-75121 Uppsala, Sweden. Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden. Univ Stockholm, FYSIKUM, S-11385 Stockholm, Sweden. IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA.

Published
2000

2. The electronic structure and surface chemistry of glycine adsorbed on Cu(110)

Author

Nyberg, M, Hasselstrom, J, Karis, O, Wassdahl, N, Weinelt, M, Nilsson, A, Pettersson, LGM, Nyberg, M, Hasselstrom, J, Karis, O, Wassdahl, N, Weinelt, M, Nilsson, A, and Pettersson, LGM

Abstract

We present a combined density functional theory and x-ray emission spectroscopy study of the bonding and chemistry of glycine (NH2CH2COOH) chemisorbed on Cu(110). The amino acid deprotonates upon adsorption. The adsorbate exhibits a rich surface chemistry, Addresses: Pettersson LGM, Univ Stockholm, Dept Phys, Box 6730, S-11385 Stockholm, Sweden. Univ Stockholm, Dept Phys, S-11385 Stockholm, Sweden. Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden.

Published
2000

3. Ammonia adsorbed on Cu(110): An angle resolved x-ray spectroscopic and ab initio study

Author

Hasselstrom, J, Fohlisch, A, Karis, O, Wassdahl, N, Weinelt, M, Nilsson, A, Nyberg, M, Pettersson, LGM, Stohr, J, Hasselstrom, J, Fohlisch, A, Karis, O, Wassdahl, N, Weinelt, M, Nilsson, A, Nyberg, M, Pettersson, LGM, and Stohr, J

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, Addresses: Hasselstrom J, Univ Uppsala, Dept Phys, Box 530, S-75121 Uppsala, Sweden. Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden. Univ Stockholm, FYSIKUM, S-11385 Stockholm, Sweden. IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA.

Published
1999

4. An atom-specific look at the surface chemical bond

Author

Nilsson, A, Weinelt, M, Wiell, T, Bennich, P, Karis, O, Wassdahl, N, Stohr, J, Samant, MG, Nilsson, A, Weinelt, M, Wiell, T, Bennich, P, Karis, O, Wassdahl, N, Stohr, J, and Samant, MG

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, Addresses: Nilsson A, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. IBM CORP, ALMADEN RES CTR, DIV RES, SAN JOSE, CA 95120.

Published
1997

5. Determination of the electronic density of states near buried interfaces: Application to Co/Cu multilayers

Author

Nilsson, A, Stohr, J, Wiell, T, Alden, M, Bennich, P, Wassdahl, N, Samant, MG, Parkin, SSP, Martensson, N, Nordgren, J, Johansson, B, Skriver, HL, Nilsson, A, Stohr, J, Wiell, T, Alden, M, Bennich, P, Wassdahl, N, Samant, MG, Parkin, SSP, Martensson, N, Nordgren, J, Johansson, B, and Skriver, HL

Abstract

High-resolution L(3) x-ray absorption and emission spectra of Co and Cu in Co/Cu multilayers are shown to provide unique information on the occupied and unoccupied density of d states near buried interfaces. The d bands of both Co and Cu interfacial layer, Addresses: Nilsson A, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. IBM CORP, ALMADEN RES CTR, DIV RES, SAN JOSE, CA 95120. TECH UNIV DENMARK, DEPT PHYS, DK-2800 LYNGBY, DENMARK.

Published
1996

6. Resonant x-ray emission spectroscopy of molecular oxygen

Author

Glans, P, Gunnelin, K, Skytt, P, Guo, JH, Wassdahl, N, Nordgren, J, Agren, H, Gelmukhanov, FK, Warwick, T, Rotenberg, E, Glans, P, Gunnelin, K, Skytt, P, Guo, JH, Wassdahl, N, Nordgren, J, Agren, H, Gelmukhanov, FK, Warwick, T, and Rotenberg, E

Abstract

Resonant soft x-ray emission spectroscopy has been applied to study the issue of symmetry breaking upon core-hole excitation in molecular oxygen. The results provide direct evidence that the inversion symmetry is not broken in the core-excited states. Fur, Addresses: Glans P, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. LINKOPING UNIV, INST PHYS & MEASUREMENT TECHNOL, S-58183 LINKOPING, SWEDEN. UNIV OREGON, DEPT PHYS, EUGENE, OR 97403. UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 9

Published
1996

7. Carbon growth in diamond deposition on nickel studied in situ by soft x-ray emission spectroscopy

Author

Johansson, E, Skytt, P, Carlsson, JO, Wassdahl, N, Nordgren, J, Johansson, E, Skytt, P, Carlsson, JO, Wassdahl, N, and Nordgren, J

Abstract

The initial stages of diamond growth on nickel have been studied by in situ electron-excited soft x-ray emission spectroscopy. The study has been able to clarify that the codeposition of ordered graphite at the substrate/film interface is due to carbon pr, Addresses: Johansson E, UNIV UPPSALA, INST CHEM, BOX 531, S-75121 UPPSALA, SWEDEN. UNIV UPPSALA, DEPT PHYS, S-75121 UPPSALA, SWEDEN.

Published
1996

8. Resonant X-ray fluorescence spectroscopy of correlated systems: A probe of charge-transfer excitations

Author

Butorin, SM, Mancini, DC, Guo, JH, Wassdahl, N, Nordgren, J, Nakazawa, M, Tanaka, S, Uozumi, T, Kotani, A, Ma, Y, Myano, KE, Karlin, BA, Shuh, DK, Butorin, SM, Mancini, DC, Guo, JH, Wassdahl, N, Nordgren, J, Nakazawa, M, Tanaka, S, Uozumi, T, Kotani, A, Ma, Y, Myano, KE, Karlin, BA, and Shuh, DK

Abstract

X-ray fluorescence spectroscopy with monochromatic photon excitation is presented as a tool for studies of charge-transfer excitations in correlated systems, using CeO2 and UO3 as examples. Ce 4f --> 3d and U 5f --> 3d x-ray fluorescence, with excitation, Addresses: UNIV UPPSALA, DEPT PHYS, S-75121 UPPSALA, SWEDEN. UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN. UNIV OSAKA PREFECTURE, COLL ENGN, SAKAI, OSAKA 593, JAPAN. UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195. BATTELLE MEM INST, PACIF

Published
1996

9. One-step and two-step description of deexcitation processes in weakly interacting systems

Author

Karis, O, Nilsson, A, Weinelt, M, Wiell, T, Puglia, C, Wassdahl, N, Martensson, N, Samant, M, Stohr, J, Karis, O, Nilsson, A, Weinelt, M, Wiell, T, Puglia, C, Wassdahl, N, Martensson, N, Samant, M, and Stohr, J

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), Addresses: Karis O, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. IBM CORP, ALMADEN RES CTR, DIV RES, SAN JOSE, CA 95120.

Published
1996

10. Resonant X-ray fluorescence spectroscopy of correlated systems: A probe of charge-transfer excitations

Author

Butorin, SM, Mancini, DC, Guo, JH, Wassdahl, N, Nordgren, J, Nakazawa, M, Tanaka, S, Uozumi, T, Kotani, A, Ma, Y, Myano, KE, Karlin, BA, Shuh, DK, Butorin, SM, Mancini, DC, Guo, JH, Wassdahl, N, Nordgren, J, Nakazawa, M, Tanaka, S, Uozumi, T, Kotani, A, Ma, Y, Myano, KE, Karlin, BA, and Shuh, DK

Abstract

X-ray fluorescence spectroscopy with monochromatic photon excitation is presented as a tool for studies of charge-transfer excitations in correlated systems, using CeO2 and UO3 as examples. Ce 4f --> 3d and U 5f --> 3d x-ray fluorescence, with excitation, Addresses: UNIV UPPSALA, DEPT PHYS, S-75121 UPPSALA, SWEDEN. UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN. UNIV OSAKA PREFECTURE, COLL ENGN, SAKAI, OSAKA 593, JAPAN. UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195. BATTELLE MEM INST, PACIF

Published
1996

11. Resonant x-ray emission spectroscopy of molecular oxygen

Author

Glans, P, Gunnelin, K, Skytt, P, Guo, JH, Wassdahl, N, Nordgren, J, Agren, H, Gelmukhanov, FK, Warwick, T, Rotenberg, E, Glans, P, Gunnelin, K, Skytt, P, Guo, JH, Wassdahl, N, Nordgren, J, Agren, H, Gelmukhanov, FK, Warwick, T, and Rotenberg, E

Abstract

Resonant soft x-ray emission spectroscopy has been applied to study the issue of symmetry breaking upon core-hole excitation in molecular oxygen. The results provide direct evidence that the inversion symmetry is not broken in the core-excited states. Fur, Addresses: Glans P, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. LINKOPING UNIV, INST PHYS & MEASUREMENT TECHNOL, S-58183 LINKOPING, SWEDEN. UNIV OREGON, DEPT PHYS, EUGENE, OR 97403. UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 9

Published
1996

12. Determination of the electronic density of states near buried interfaces: Application to Co/Cu multilayers

Author

Nilsson, A, Stohr, J, Wiell, T, Alden, M, Bennich, P, Wassdahl, N, Samant, MG, Parkin, SSP, Martensson, N, Nordgren, J, Johansson, B, Skriver, HL, Nilsson, A, Stohr, J, Wiell, T, Alden, M, Bennich, P, Wassdahl, N, Samant, MG, Parkin, SSP, Martensson, N, Nordgren, J, Johansson, B, and Skriver, HL

Abstract

High-resolution L(3) x-ray absorption and emission spectra of Co and Cu in Co/Cu multilayers are shown to provide unique information on the occupied and unoccupied density of d states near buried interfaces. The d bands of both Co and Cu interfacial layer, Addresses: Nilsson A, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. IBM CORP, ALMADEN RES CTR, DIV RES, SAN JOSE, CA 95120. TECH UNIV DENMARK, DEPT PHYS, DK-2800 LYNGBY, DENMARK.

Published
1996

13. ELECTRONIC-STRUCTURE OF BI2SR2CACU2O8+DELTA AND TL2BA2CACU2O8 - NEAR-O-1S-THRESHOLD EXCITATION X-RAY FLUORESENCE STUDIES

Author

BUTORIN, SM, GUO, JH, WASSDAHL, N, SKYTT, P, NORDGREN, J, MA, Y, STROM, C, JOHANSSON, LG, QVARFORD, M, BUTORIN, SM, GUO, JH, WASSDAHL, N, SKYTT, P, NORDGREN, J, MA, Y, STROM, C, JOHANSSON, LG, and QVARFORD, M

Abstract

Addresses: BUTORIN SM, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195. BATTELLE MEM INST, PACIFIC NW LABS, MOLEC SCI RES CTR, RICHLAND, WA 99352. CHALMERS UNIV TECHNOL, DEPT INORGAN CHEM, S-41296 G

Published
1995

14. SUB-ELECTRON-VOLT CHEMICAL-SHIFTS AND STRONG INTERFERENCE EFFECTS MEASURED IN THE RESONANCE X-RAY-SCATTERING SPECTRA OF ANILINE

Author

LUO, Y, AGREN, H, GUO, JH, SKYTT, P, WASSDAHL, N, NORDGREN, J, LUO, Y, AGREN, H, GUO, JH, SKYTT, P, WASSDAHL, N, and NORDGREN, J

Abstract

By exploring the monosubstituted benzene compound aniline, we demonstrate that resonance inelastic x-ray spectroscopy of chemically shifted species is site selective. Core-excited levels with distinct, super-electron-volt shifts can be resonantly excited, Addresses: LUO Y, LINKOPING UNIV, INST PHYS & MEASUREMENT TECHNOL, S-58183 LINKOPING, SWEDEN. UNIV UPPSALA, DEPT PHYS, S-75121 UPPSALA, SWEDEN.

Published
1995

15. SYMMETRY-SELECTIVE RESONANT INELASTIC X-RAY-SCATTERING OF C-60

Author

YI, L, AGREN, H, GELMUKHANOV, F, GUO, JH, SKYTT, P, WASSDAHL, N, NORDGREN, J, YI, L, AGREN, H, GELMUKHANOV, F, GUO, JH, SKYTT, P, WASSDAHL, N, and NORDGREN, J

Abstract

The resonantly excited x-ray emission spectra of the C-60 molecule are presented and analyzed in terms of symmetry- and polarization-selective resonant inelastic scattering processes (RIXS). The theoretical analysis implements recently derived formalisms, Addresses: YI L, LINKOPING UNIV, INST PHYS & MEASUREMENT TECHNOL, S-58183 LINKOPING, SWEDEN. UNIV UPPSALA, DEPT PHYS, S-75121 UPPSALA, SWEDEN.

Published
1995

19. RESONANT EXCITATION X-RAY-FLUORESCENCE FROM C-60

Author

GUO, JH, GLANS, P, SKYTT, P, WASSDAHL, N, NORDGREN, J, LUO, Y, AGREN, H, MA, Y, WARWICK, T, HEIMANN, P, ROTENBERG, E, DENLINGER, JD, GUO, JH, GLANS, P, SKYTT, P, WASSDAHL, N, NORDGREN, J, LUO, Y, AGREN, H, MA, Y, WARWICK, T, HEIMANN, P, ROTENBERG, E, and DENLINGER, JD

Abstract

X-ray fluorescence of condensed C-60 has been recorded in high resolution using monochromatic synchrotron radiation excitation. Strong intensity modulation of constituent spectral features is observed with varying excitation energy up to 10 eV above thres, Addresses: GUO JH, UPPSALA UNIV, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. LINKOPING UNIV, DEPT PHYS & MEASUREMENT TECHNOL, S-58183 LINKOPING, SWEDEN. UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195. BATTELLE MEM INST, PACIFIC NW LABS, MOLEC SCI RES CTR

Published
1995

20. PROBING SYMMETRY-BREAKING UPON CORE EXCITATION WITH RESONANT X-RAY-FLUORESCENCE

Author

SKYTT, P, GUO, JH, WASSDAHL, N, NORDGREN, J, LUO, Y, AGREN, H, SKYTT, P, GUO, JH, WASSDAHL, N, NORDGREN, J, LUO, Y, and AGREN, H

Abstract

Resonantly excited x-ray fluorescence spectra of the benzene molecule are presented and analyzed in terms of symmetry-selective resonant scattering processes. The sharp frequency dependency that is observed can be understood from strict parity and symmetr, Addresses: SKYTT P, UNIV UPPSALA, DEPT PHYS, BOX 530, S-75121 UPPSALA, SWEDEN. LINKOPING UNIV, INST PHYS & MEASUREMENT TECHNOL, S-58183 LINKOPING, SWEDEN.

Published
1995

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