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@Article { Morniroli:2007,
   title = {Contribution of Electron Precession to the Identification of the Space Group from Microdiffraction Patterns.},
   journal = {Ultramicroscopy},
   year = {2007},
   volume = {107},
   number = {6-7},
   pages = {514-522},
   abstract = {In a previous study, it was reported that the possible space groups of a crystal can be identified at a microscopic or nanoscopic scale, thanks to microdiffraction patterns obtained with a nearly parallel electron incident beam focused on a very small area of the specimen. A systematic method was proposed, which consists of the observation of a few microdiffraction patterns displaying at least two Laue zones. These microdiffraction patterns can also be obtained by using an electron precession equipment. In this case, the patterns display a very large number of reflections in the Laue zones whose intensity is the integrated intensity. These original features greatly facilitate the space group identification method and are particularly useful when the high-order Laue zones (HOLZ) are not visible on microdiffraction patterns or when very thin specimens are not available. (c) 2006 Elsevier B.V. All rights reserved.},
   note = {D{\'e}partement SI2M : Microstructures et Contraintes},
   organization = {Free Univ Brussels},
   ISSN = {0304-3991},
   DOI = {10.1016/j.ultramic.2006.03.013},
   author = {Morniroli, J. P. and Redja{\"i}mia, A. and Nicolopoulos, S.}
}

@Article { Morniroli:2007a,
   title = {Electron precession microdiffraction as a useful tool for the identification of the space group. Application of the identification of the space group.},
   journal = {Journal of microscopy},
   year = {2007},
   volume = {227},
   number = {2},
   pages = {157-171},
   abstract = {The possible space groups of a crystal can be identified from a few zone axis microdiffraction patterns provided the position (and not the intensity) of the reflections on the patterns is taken into account. The method is based on the observation of the shifts and the periodicity differences between the reflections located in the first-order Lane zone (FOLZ) with respect to the ones located in the zero-order Laue zone (ZOLZ). Electron precession microdiffraction patterns display more reflections in the ZOLZ and in the FOLZ than in the conventional microdiffraction patterns and this number increases with the precession angle. It is shown, from the TiAl example given in the present study. that this interesting feature brings a strong beneficial effect for the identification of the possible space groups since it becomes very easy to identify unambiguously the FOLZ/ZOLZ shifts and periodicity differences. In addition. the diffracted intensity on the precession patterns is the integrated intensitv and this intensity can also be used to identify the Laue class.},
   note = {D{\'e}partement SI2M : Microstructures et Contraintes},
   ISSN = {0022-2720},
   DOI = {10.1111/j.1365-2818.2007.01800.x},
   author = {Morniroli, J.-P. and Redja{\"i}mia, A.}
}