The crystal structure and lattice constants of R.E. 2In and some R.E. 5In 3 compounds

Abstract

A new series of isomorphous compounds of composition R.E. 2In has been prepared by alloying rare earths with indium. The structure of these compounds corresponds to that of the Ni 2In type and is observed for all trivalent rare earths from La to Lu with the exception of Eu and Yb which do not form this phase. For Ho, Er, Tm and Lu the phase R.E. 5In 3 was additionally found; this phase has the Mn 5Si 3 type of structure which is closely related to that of Ni 2In.