Publications associées à Electronic structure of Bi2 Ir2 O7 probed by resonant inelastic x-ray scattering at the oxygen K edge: Metallicity, hybridization, and electronic correlations

Publications associées (7)

Monomeric Fe in Six-Membered Rings at Work: Operando Spectroscopy of Nitrous Oxide Activation and Decomposition over Fe-Exchanged Zeolites

Oliver Kröcher, Daniel Camilo Cano Blanco

The heterogeneous speciation of ion-exchanged zeolites hinders a rational understanding of their reactivity. This is particularly the case for Fecontaining zeolites that are widely used in both the activation and decomposition of N 2 O. Herein, we explored ...

American Chemical Society (ACS)2025

Half-Sandwich Ruthenium and Osmium Complexes with Hydrazinocurcuminoid-like Ligands

Paul Joseph Dyson, Farzaneh Fadaei Tirani, Kseniya Aleksandrovna Glinkina

Ruthenium and osmium half-sandwich complexes with hydrazinocurcuminoid ligands, 4,4′-((1E,1′E)-(1-(pyridin-2-yl)-1H-pyrazole-3,5-diyl)bis(ethene-2,1-diyl))bis-(2-methoxyphenol) (HZPcurc) and 4,4′-((1E,1′E)-(1-(pyridin-2-yl)-1H-pyrazole-3,5-diyl)bis(ethene- ...

American Chemical Society (ACS)2025

Squaraine Dyes for Organic Photomultiplication Photodetectors with 220% External Quantum Efficiency at 1240 nm

João Pedro Ferreira Assunção, Frank Nüesch, Elodie Didier

Near-infrared (NIR) light detection at wavelengths lambda > 1100 nm is essential in modern science and technology. Emerging organic semiconductors are promising for solution-processed, flexible, and large-area NIR organic photodetectors (OPDs), but only a ...

WILEY2025

Electron trapping in gyrotron electron guns: Validation of the FENNECS code with the T-REX experiment

Guillaume Michel Le Bars, Timothy Goodman, Stefano Alberti, Jean-Philippe Hogge, Mario Ludovico Podesta, Joaquim Loizu Cisquella, Jérémy Genoud, Falk Hans Braunmüller, Francesco Romano, Pierrick Paul Louis Giroud-Garampon

Gyrotrons are essential devices for the development of nuclear fusion, but their design and reliable operation still present numerous challenges. In particular, certain gyrotrons encounter issues related to trapped electron clouds in the magnetron injectio ...

AIP Publishing2025

Alternative Plasmonic Materials for Fluorescence Enhancement

Olivier Martin, Stavros Athanasiou

Noble metals such as gold and silver have been used extensively for a range of plasmonic applications, including enhancing the fluorescence rate of a dye molecule, as evidenced by numerous experiments over the past two decades. Recently, a variety of doped ...

2024

Probing the Formation of Nonlinear Optical States with Free Electrons

Tobias Kippenberg, Rui Ning Wang, Arslan Sajid Raja, Guanhao Huang, Zheru Qiu, Alexey Tikan, Aleksandr Tusnin, Yujia Yang

Combining nonlinear integrated photonics with electron microscopy, we probe the formation of optical dissipative structures in Si3N4 microresonators with free electrons and find unique spectral fingerprints in the electron spectrum that enable new electron ...

Institute of Electrical and Electronics Engineers Inc.2024

Optical and thermal characterization of a group-III nitride semiconductor membrane by microphotoluminescence spectroscopy and Raman thermometry

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau

We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking microphotoluminescence spectroscopy with Raman thermometry and other spectroscopic techniques, we ...

Amer Physical Soc2023