Elucidating magnetic structure with optical dopants: erbium-doped Gd${}_2$SiO${}_5$

Luke S. Trainor, Masaya Hiraishi, J. -R. Soh +1

The narrowness of the optical transitions of rare-earth-ion dopants makes them highly sensitive probes of their environment. We measured the optical transitions Er${}^{3+}$ dopants t…