From {simple|easy|straightforward|basic|uncomplicated|very simple} to {complex|complicated} crystal chemistry {in the|within the|inside the} RE−Au−Tt systems (RE = La, Ce, Pr, Nd, Ho; Tt = Ge, Sn, Pb)
Polar intermetallics are an intriguing class of compounds with {complex|complicated} relationships {between|in between|among|amongst|involving} composition and structure {that are|which are|which can be|which might be|that happen to be} not {fully|totally|completely} understood. This…