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Shear of a charge density wave observed by an XFEL source
The transport of charges through materials is an essential phenomenon for many devices, whether they are semiconductors, superconductors or batteries. Unfortunately, it is not possible to observe the motion of …
Generation and coexistence of CDW phases under biaxial elongation
Researchers and engineers at the Solid State Physics Laboratory (LPS) (UMR of the CNRS and the University of Paris-Saclay) have developed an innovative device capable of applying biaxial mechanical deformations …
Tracking Defects of Electronic Crystals by Coherent X-ray Diffraction
In this article, we review different experiments using advanced X-ray diffraction techniques, in particular coherent diffraction, which have enabled us to reveal the behavior of systems with broken symmetry such …
Spin- and angle-resolved inverse photoemission setup
A powerful technique for exploring the conduction band is inverse photoemission. By controlling the incidence of a well-collimated electron beam, it is possible to fully characterize the conduction band (with …
School “Metal Halide Perovskites for Optoelectronics : from Fundamental to Devices” – 6-12/10/2024
Organized by : Maria Chamarro (Sorbonne Université – Paris) ; Géraud Delport (IPVF – Palaiseau) ; Jacky Even (Institut FOTON – Rennes) ; Claudine Katan (ISC – Rennes) ; Sébastien Pillet (CRM2 Université de …
“Large Scale Facilities and Hybrid Perovskites” Workshop organized at LPS – 02/02/23
Organization Comitee : Sébastien Pillet (CRM2, Université de Lorraine); Olivier Plantevin (LPS, Université Paris Saclay), Jacky Even (INSA, Rennes) The workshop targeted different structural, dynamic and spectroscopic issues of fundamental …
XFEL School – Aussois, 2-7/10/2022
XFEL SCHOOL FOR CONDENSED MATTER, PHYSICS IN EXTREME CONDITIONS AND DENSE PLASMAS This event is organized by the GDR XFEL and aims to present the new possibilities offered by free …
The AFC thesis prize for physics awarded to Isabel González-Vallejo
Recent time-resolved diffraction techniques allow the dynamic study of matter with unprecedented spatio-temporal resolution [1], typically on time scales as short as a few hundred femtoseconds. Such study has become …
Reversible Photo-Induced Phase Segregation and Origin of Long Carrier Lifetime in Mixed-Halide Perovskite Films
Solar cells based on mixed-halide hybrid perovskites show efficiencies that have already surpassed the best polycrystalline silicon-based cells, in just a few years since their discovery 1. However, these advanced perovskite …