Publications for Ulf Ekström
Co-author map based on ISI articles 2007-

Keywords

x-ray umbrella thesup> spectra relativistic propagator polarization p> orbitals functional four-component excited energy em>-edge electronic dipole birefringence approximation absorption /sup>the

Journal Articles

Ulf Ekström, V. Carravetta, M. Alagia, M. Lavollée, R. Richter, C. Bolcato and S. Stranges
  The umbrella motion of core-excited CH3 and CD3 methyl radicals
  Journal of Chemical Physics, 2008, 128(4), 044302-1-044302-11.
 Web of Science® Times Cited: 1

Auayporn Jiemchooroj, Ulf Ekström and Patrick Norman
  Near-edge X-ray absorption and natural circular dichroism spectra of L-alanine: a theoretical study based on the complex polarization propagator approach
  Journal of Chemical Physics, 2007, 127(16), 165104.
 Web of Science® Times Cited: 18

Guangde Tu, Zilvinas Rinkevicius, Olav Vahtras, Hans Ågren, Ulf Ekström, Patrick Norman and Vincenzo Carravetta
  Self-interaction-corrected time-dependent density functional theory calculations of x-ray absorption spectra
  Physical Review A, 2007, 76(2), 022506.
 Web of Science® Times Cited: 15

M. Alagia, M. Lavollée, R. Richter, Ulf Ekström, V. Carravetta, D. Stranges, B. Brunetti and S. Stranges
  Probing the potential energy surface by highresolution x-ray absorption spectroscopy: The umbrella motion of the coreexcited CH3 free radical
  Physical Review. A, 2007, 76(2), 124305.
 Web of Science® Times Cited: 5

Johan Henriksson, Ulf Ekström and Patrick Norman
  On the evaluation of quadratic response functions at the four-component Hartree-Fock level: Nonlinear polarization and two-photon absorption in bromo- and iodobenzen
  The Journal of Chemical Physics, 2006, 124(21), 214311.
 Web of Science® Times Cited: 7

Ulf Ekström, Patrick Norman, Vincenzo Carravetta and Hans Ågren
  Polarization propagator for x-ray spectra
  Physical Review Letters, 2006, 97(14), 143001.
 Web of Science® Times Cited: 36

Ulf Ekström and Patrick Norman
  X-ray absorption spectra from the resonantconvergent first-order polarization propagator approach
  Physical Review A. Atomic, Molecular, and Optical Physics, 2006, 74(4), 042722.
 Web of Science® Times Cited: 27

C. Såthe, F. F. Guimarães, J.-E. Rubensson, J. Nordgren, A. Agui, J. Guo, Ulf Ekström, Patrick Norman, F. Gel'mukhanov and H. Ågren
  Resonant LII;III x-ray raman scattering from HCl
  Physical Review A, 2006, 74(6), 062512.
 Web of Science® Times Cited: 5

Ulf Ekström, Patrick Norman and Vincenzo Carravetta
  Relativistic four-component static-exchange approximation for core-excitation processes in molecules
  Physical review A, 2006, 73(2), 022501.
 Web of Science® Times Cited: 17

Ulf Ekström, Antonio Rizzo and Patrick Norman
  Four-component Hartree–Fock calculations of magnetic-field induced circular birefringence—Faraday effect—in noble gases and dihalogens
  The Journal of Chemical Physics, 2005, 122, 074321.
 Web of Science® Times Cited: 5

Ulf Ekström, Henrik Ottosson and Patrick Norman
  Characterization of the chemisorption of methylsilane on a Au(1,1,1) surface from the silicon K- and L-edge spectra: a theoretical study using the four-component static exchange approximation
  The Journal of Physical Chemistry C, 2005, 111, 13846-13850.
 Web of Science® Times Cited: 4

Michele Alagia, Chiara Baldacchini, Maria Grazia Betti, Fabio Bussolotti, Vincenzo Carravetta, Ulf Ekström, Carlo Mariani and Stefano Stranges
  Core-shell photoabsorption and photoelectron spectra of gas-phase pentacene: Experiment and theory
  Journal of chemical physics Online, 2005, 122(12), 124305.
 Web of Science® Times Cited: 44

Chiara Cappelli, Ulf Ekström, Antonio Rizzo and Sonia Coriani
  The molecular electric quadrupole moment and electric field gradient induced birefringence (Buckingham effect) of Cl2
  Journal of Computational Methods in Sciences and Engineering, 2004, 4(3), 365-380.

Ph.D. Theses

Ulf Ekström
  Time-dependent molecular properties in the optical and x-ray regions
  2007.


  Fulltext PDF

Licentiate Theses

Ulf Ekström
  Birefringences and X-ray absorption from relativistic and nonrelativistic quantum chemical methods
  2005.