1. Stuttgart Center for Simulation Science (SC SimTech), University of Stuttgart, 70569 Stuttgart, Germany
2. Institute for Computational Physics, University of Stuttgart, 70569 Stuttgart, Germany
3. Univ. Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France
4. Navier, Ecole des Ponts, Univ. Gustave Eiffel, CNRS, 77420 Marne-la-Vallée, France
5. Institut Laue Langevin, F-38042 Grenoble, France