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Publications associées (29)

Dramatic pressure-driven enhancement of bulk skyrmion stability

Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Oleksandr Kriuchkov, Helmuth Berger, Jonathan White

The recent discovery of magnetic skyrmion lattices initiated a surge of interest in the scientific community. Several novel phenomena have been shown to emerge from the interaction of conducting electrons with the skyrmion lattice, such as a topological Ha ...

Nature Research2016

Electron-Phonon Coupling in the Bulk of Anatase TiO2 Measured by Resonant Inelastic X-Ray Spectroscopy

Marco Grioni, Helmuth Berger, Arnaud Magrez, Simon Karl Moser, Philippe Bugnon, Sara Fatale

We investigate the polaronic ground state of anatase TiO2 by bulk-sensitive resonant inelastic x-ray spectroscopy (RIXS) at the Ti L-3 edge. We find that the formation of the polaron cloud involves a single 95 meV phonon along the c axis, in addition to th ...

Amer Physical Soc2015

A Branch-and-Price Algorithm to Solve the Integrated Berth Allocation and Yard Assignment Problem in Bulk Ports

Michel Bierlaire, Nitish Umang, Tomas Robenek

In this research, two crucial optimization problems of berth allocation and yard assignment in the context of bulk ports are studied. We discuss how these problems are interrelated and can be combined and solved as a single large scale optimization problem ...

Elsevier Science Bv2014

DFT-Derived Reactive Potentials for the Simulation of Activated Processes: the Case of CdTe and CdTe:S

Wanda Andreoni, Fabio Pietrucci, Riccardo Ciaglia

We introduce a new ab initio derived reactive potential for the simulation of CdTe within density functional theory (DFT) and apply it to calculate both static and dynamical properties of a number of systems (bulk solid, defective structures, liquid, surfa ...

Amer Chemical Soc2014

Exact and Heuristic Methods to Solve the Berth Allocation Problem in Bulk Ports

Michel Bierlaire, Ilaria Vacca, Nitish Umang

In this paper, we study the dynamic hybrid berth allocation problem in bulk ports with the objective to minimize the total service times of the vessels. We propose two exact methods based on mixed integer progra mming and generalized set partitionin g, and ...

Pergamon-Elsevier Science Ltd2013

Vesicle Photonics

Demetri Psaltis, Sylvie Roke, Jeffrey Alan Hubbell, Andreas Vasdekis

Amphiphiles, under appropriate conditions, can self-assemble into nanoscale thin membrane vessels (vesicles) that encapsulate and hence protect and transportmolecular payloads.Vesicles assemble naturally within cells but can also be artificially synthesize ...

Annual Reviews2013

Adsorbed and near surface structure of ionic liquids at a solid interface

Kislon Voitchovsky, Juan José Segura Sugranes

The structure of solid-ionic liquid (IL) interfaces has been characterised with unprecedented clarity by employing a range of atomic force microscopy (AFM) imaging techniques and tip pressures appropriate for the system under study. Soft contact and amplit ...

Royal Society of Chemistry2013

Incremental Model Identification of Gas-Liquid Reaction Systems with Unsteady-State Diffusion

Dominique Bonvin, Julien Léo Billeter, Sriniketh Srinivasan, Benoit Till Cretegny

Identification of kinetic models and estimation of reaction and mass-transfer parameters can be performed using the extent-based identification method, whereby each chemical/physical process is handled separately [1-3]. This method is used here to analyze ...

2013

Bulk Fermi surface and electronic properties of Cu0.07Bi2Se3

Helmuth Berger

The electronic properties of Cu0.07Bi2Se3 have been investigated using Shubnikov-de Haas and optical reflectance measurements. Quantum oscillations reveal a bulk, three-dimensional Fermi surface with anisotropy k(F)(c)/k(F)(ab) approximate to 2 and a modes ...

Amer Physical Soc2013

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