Selective peak broadening - interpretation and handling in FullProf

2015-07-31 Thread Kotaro SAITO
Dear Rietvelders, There is two things I would like to ask. 1. Physical interpretation of selective peak broadening I have a difficulty in interpreting selective peak broadening in my TOF data of quaternary Heusler alloy. All peaks for all-odd hkl reflections show significant broadening (about

Re: Selective peak broadening - interpretation and handling in FullProf

2015-07-31 Thread Leonid Solovyov
Dear Kotaro, The broadening you describe seems to be due to a non-uniform distribution of site occupancies in the crystal lattice. A general model for such defect-related broadening is described here: http://dx.doi.org/10.1107/S00218898114X The model is included into the DDM program (but

RE: Selective peak broadening - interpretation and handling in FullProf

2015-07-31 Thread Radovan Cerny
Dear Kotaro, The same rule of line broadening was observed in beta phase of Mg(BH4)2, and was explained as ordering of twin domains, in other words microtwinning which creates a superstructure to the even,even,even subcell. If the twinning probability is not 100%, then the odd,odd,odd