A. P. Sorini

  • Citations Per Year
Learn More
The dynamics of an order parameter's amplitude and phase determines the collective behaviour of novel states emerging in complex materials. Time- and momentum-resolved pump-probe spectroscopy, by virtue of measuring material properties at atomic and electronic time scales out of equilibrium, can decouple entangled degrees of freedom by visualizing their(More)
A new strategy is presented to reduce primary X-ray damage in macromolecular crystallography. The strategy is based on separating the diffracting and damaged regions as much as feasible. The source of the radiation damage to macromolecular crystals is from two primary mechanisms: the direct excitations of electrons by absorption, and inelastic scattering of(More)
High-pressure x-ray emission measurements are used to provide crucial evidence in the longstanding debate over the nature of the isostructural (α, γ) volume collapse in elemental cerium. Extended local atomic model calculations show that the satellite of the Lγ emission line offers direct access to the total angular momentum observable (J(2)). This(More)
Bound-state, valence electronic excitation spectra of N2 are probed by nonresonant inelastic x-ray and electron scattering. Within usual theoretical treatments, dynamical structure factors derived from the two probes should be identical. However, we find strong disagreements outside the dipole scattering limit, even at high probe energies. This suggests an(More)
W. L. Yang, A. P. Sorini, C-C. Chen, 3 B. Moritz, W.-S. Lee, F. Vernay, P. Olalde-Velasco, 5 J. D. Denlinger, B. Delley, J.-H. Chu, 6, 7 J. G. Analytis, 6, 7 I. R. Fisher, 6, 7 Z. A. Ren, J. Yang, W. Lu, Z. X. Zhao, J. van den Brink, 9 Z. Hussain, Z.-X. Shen, 6, 7, 3 and T. P. Devereaux 7 Advanced Light Source, Lawrence Berkeley National Laboratory,(More)
We investigate the order parameter dynamics of the stripe-ordered nickelate, La(1.75)Sr(0.25)NiO(4), using time-resolved resonant x-ray diffraction. In spite of distinct spin and charge energy scales, the two order parameters' amplitude dynamics are found to be linked together due to strong coupling. Additionally, the vector nature of the spin sector(More)
  • 1