Results 51 to 60 of about 13,762 (217)

Unconventional exciton evolution from the pseudogap to superconducting phases in cuprates

Nature Communications, 2022
The nature of the excitations in the pseudogap regime and their relation to superconductivity remain core issues in cuprate high-T c superconductivity.
A. Singh, H. Y. Huang, J. D. Xie, J. Okamoto, C. T. Chen, T. Watanabe, A. Fujimori, M. Imada, D. J. Huang   +8 more
doaj   +1 more source

Quantum chemical insights into hexaboride electronic structures: correlations within the boron p-orbital subsystem

Communications Physics, 2022
The hexaborides are a family of materials that exhibit an exotic range of low-temperature properties the physics of which is still under debate. Here, the authors adopt ab initio multi-configurational wavefunction theory to investigate the strong ...
Thorben Petersen, Ulrich K. Rößler, Liviu Hozoi   +2 more
doaj   +1 more source

Theory of Spin-Excitation Anisotropy in the Nematic Phase of FeSe Obtained From RIXS Measurements

Frontiers in Physics, 2022
Recent resonant inelastic x-ray scattering (RIXS) experiments have detected a significant high-energy spin-excitation anisotropy in the nematic phase of the enigmatic iron-based superconductor FeSe, whose origin remains controversial.
Andreas Kreisel, P. J. Hirschfeld, Brian M. Andersen   +2 more
doaj   +1 more source

The meV XUV-RIXS facility at UE112-PGM1 of BESSY II

Journal of Synchrotron Radiation, 2022
Resonant inelastic X-ray scattering in the XUV-regime has been implemented at BESSY II, pushing for a few-meV bandwidth in inelastic X-ray scattering at transition metal M-edges, rare earth N-edges and the K-edges of light elements up to carbon with full
Karl Bauer, Jan-Simon Schmidt, Frank Eggenstein, Régis Decker, Kari Ruotsalainen, Annette Pietzsch, Thomas Blume, Chun-Yu Liu, Christian Weniger, Frank Siewert, Jana Buchheim, Grzegorz Gwalt, Friedmar Senf, Peter Bischoff, Lisa Schwarz, Klaus Effland, Matthias Mast, Thomas Zeschke, Ivo Rudolph, Andreas Meißner, Alexander Föhlisch   +20 more
doaj   +1 more source

Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering.

Physical Review Letters, 2020
High T_{c} superconductors show a rich variety of phases associated with their charge degrees of freedom. Valence charges can give rise to charge ordering or acoustic plasmons in these layered cuprate superconductors.
A. Nag, M. Zhu, M. Bejas, J. Li, H. Robarts, H. Yamase, A. N. Petsch, D. Song, H. Eisaki, Andrew Walters, M. García-Fernández, A. Greco, S. Hayden, K. Zhou   +13 more
semanticscholar   +1 more source

Resonant inelastic x-ray scattering in a Mott insulator

Physical Review B, 2012
We calculate the resonant inelastic X-ray scattering (RIXS) response in a Mott insulator which is described by the Falicov-Kimball model. The model can be solved exactly within the single site dynamical mean-field theory (DMFT) approximation and the calculated RIXS response is accurate up to a local background correction.
Pakhira, Nandan, Freericks, J. K., Shvaika, A. M.   +2 more
openaire   +3 more sources

Superconducting pairing in resonant inelastic x-ray scattering

Physical Review B, 2016
We develop a method to study the effect of the superconducting transition on resonant inelastic X-ray scattering (RIXS) signal in superconductors with an order parameter with an arbitrary symmetry within a quasiparticle approach. As an example, we compare the direct RIXS signal below and above the superconducting transition for p-wave type order ...
Shi, Yifei, Benjamin, David, Demler, Eugene, Klich, Israel   +3 more
openaire   +5 more sources

Resonant inelastic x-ray scattering in warm-dense Fe compounds beyond the SASE FEL resolution limit [PDF]

Communications Physics
The authors combine differentiable physics modelling and neural networks to extract high-resolution electronic density of states of warm dense materials from resonant inelastic x-ray scattering spectra.
A. Forte, T. Gawne, Karim K. Alaa El-Din, O. Humphries, T. Preston, C. Crépisson, T. Campbell, Pontus Svensson, Sam Azadi, P. Heighway, YuanFeng Shi, D. Chin, Ethan Smith, C. Baehtz, V. Bouffetier, H. Höppner, A. Amouretti, D. McGonegle, M. Harmand, G. W. Collins, J. Wark, D. Polsin, S. Vinko   +22 more
semanticscholar   +1 more source

Nuclear dynamics in resonant inelastic X-ray scattering and X-ray absorption of methanol [PDF]

The Journal of Chemical Physics, 2019
We report on a combined theoretical and experimental study of core-excitation spectra of gas and liquid phase methanol as obtained with the use of X-ray absorption spectroscopy (XAS) and resonant inelastic X-ray scattering (RIXS). The electronic transitions are studied with computational methods that include strict and extended second-order algebraic ...
Vinícius Vaz da Cruz, Nina Ignatova, Rafael C. Couto, Daniil A. Fedotov, Dirk R. Rehn, Viktoriia Savchenko, Patrick Norman, Hans Ågren, Sergey Polyutov, Johannes Niskanen, Sebastian Eckert, Raphael M. Jay, Mattis Fondell, Thorsten Schmitt, Annette Pietzsch, Alexander Föhlisch, Faris Gel’mukhanov, Michael Odelius, Victor Kimberg   +18 more
openaire   +9 more sources

Theory of Electron-Phonon Interactions in Extended Correlated Systems Probed by Resonant Inelastic X-Ray Scattering [PDF]

Physical Review X
An emerging application of resonant inelastic x-ray scattering (RIXS) is the study of lattice excitations and electron-phonon (e-ph) interactions in quantum materials.
Jinu Thomas, Debshikha Banerjee, Alberto Nocera, S. Johnston   +3 more
semanticscholar   +1 more source