  "Seek and ye shall find, the unsought shall go undetected." This adage,
attributed to Aristophanes' can be considered one of the defining mantras of
new materials research; if you don't look, you certainly will not discover. As
a result of our recent discovery of the binary quasicrystalline phase
i-Sc12Zn88 we proposed that there may well be other binary quasicrystalline
phases lurking nearby known crystalline approximants, perhaps as peritectally
forming compounds with very limited liquidus surfaces, offering greatly reduced
ranges of composition/temperature for primary solidification. Here we report
that, as the adage goes, we have found. Indeed, adjacent to the RCd6, cubic
approximate structure, we have discovered the long sought after model system
for magnetic quasicrystals: a new family of at least seven rare earth
icosahedral quasicrystals: i-R-Cd for R = Gd - Tm, Y, six of which now form the
known set of moment bearing, binary quasicrystals.
