Portée par l’internet des objets et l’intelligence artificielle, la quantité de données générées stockées augmente manière exponentielle. A l’horizon 2030, 20 % l’électricité mondiale sera utilisée pour le stockage gestion données. Une très large majorité est stockée sur surfaces magnétiques. Nous démontrons que nous pouvons retourner l’aimantation d’une couche ferromagnétique, donc écrire l’in...

The optic and simulation group at HZB are designing a light source based on the emerging Energy Recovery Linac superconducting technology, the Femto-ScienceFactory (FSF) will provide its users with ultra-bright photons of angstrom wavelength at 6 GeV. The FSF is intended to be a multi-user facility and offer a wide variety of operation modes. A low emittance ∼ 0.1μm rad mode will operate in con...

We investigate two fundamental steps of a nonadiabatic surface process, the photo-induced movement and approach of CO molecules on the Cu(111) surface, at a hitherto unachieved single-molecule level through scanning tunneling microscope imaging. For the close approach of two CO molecules, we not only determine the nonadiabatic diffusion barrier (87 meV), but also discover a femto-second-laser-i...

Efficient absorption of visible light and a long-lived excited state lifetime of silver nanoclusters (Ag29 NCs) are integral properties for these new clusters to serve as light-harvesting materials. Upon optical excitation, electron injection at Ag29 NC/methyl viologen (MV(2+)) interfaces is very efficient and ultrafast. Interestingly, our femto- and nanosecond time-resolved results demonstrate...

This document provides an overview of the inter-cell interference management in LTE/LTE-A as tackled in the 4G++ project work package 4. The 4G++ project addresses two areas: Inter-cell interference coordination schemes and in particular autonomous schemes for uplink interference management, interference alignment techniques and its application in wireless cellular systems, and interference man...

Ion channels are protein macromolecules that form biological nanotubes across the membranes of living cells. Given many possible geometrical shapes of an ion channel, we propose a computational scheme of selecting the model that best replicates experimental observations, using adaptive Brownian dynamics simulations together with discrete optimization algorithms. Brownian dynamics simulations em...

cooperative targets J.-M Friedt, A. Saintenoy, S. Chrétien, T. Baron, É. Lebrasseur, T. Laroche, S. Ballandras, a) and M. Griselin SENSeOR SAS, Besançon, France IDES, UMR CNRS 8148, Université Paris Sud, France Laboratoire de mathématiques, UMR CNRS 6623, Université de Franche Comté, Besançon, France FEMTO-ST Time & Frequency, UMR CNRS 6174, Université de Franche-Comté, Besançon, France ThéMA, ...