Affiliation: | 1. Institut Néel, CNRS et Université Joseph Fourier, BP 166, 38042 Grenoble, France;2. Harvard University, School of Engineering and Applied Science, 02139 Cambridge, MA, USA;3. ID15, ESRF, 6 rue Jules Horowitz, 38043 Grenoble, France;4. Université de Lyon, CNRS-UMR 5615 LMI, Lyon, France |