A series of c-axis Nd/Y superlattices, with Nd layers up to 77 Angstro
m thick, exhibit magnetic order strikingly different from that of bulk
Nd. A portion of the moment in the superlattices orders antiferromagn
etically along c . Neel temperatures are enhanced by greater than or
equal to 40% relative to the bulk T-N of 19.9 K.