Hc. Basso, PARITY-FORBIDDEN AND SPIN-FORBIDDEN OPTICAL-TRANSITIONS OF CR+3 IN GDALO3, Physical review. B, Condensed matter, 56(15), 1997, pp. 9181-9184
In this paper, the electric-dipole transition induced by exchange is u
sed to explain the strong dependence of spin- and parity-forbidden tra
nsitions of Cr+3 on the sublattice magnetization of an antiferromagnet
host.