Does anyone has a reference concerning the dependence of several neutron scattering length (b) as a function of wavelength. I know that, like for x-ray, some resonnance can appear. A colleague of mine is experiencing some problems in fitting an holmium compound at lambda=2.4266 angstrom and thinks this could related to a different b at this wavelength than the one tabulated in [Sears, Neutron News, 3(3) 1992 26] and fullprof (8.01fm). Moreover Lazy Pulverix seems to use b=8.50fm. Has someone any idea about the correct value to use ? Thank you ------------------------------------ Jean-Marc Joubert Chargé de recherche Laboratoire de Chimie Métallurgique des Terres Rares CNRS - UPR 209 2 - 8 rue Henri Dunant - 94320 THIAIS Cedex - FRANCE phone : 33 1 49 78 12 11 fax : 33 1 49 78 12 03 email : [EMAIL PROTECTED] web : http://www.glvt-cnrs.fr/lcmtr/
