Faraday Rotation of Rare-Earth (III) Phosphate Glasses

Borogermanate glasses with a high terbium oxide content

“…Apparently, this linear dependence is typical for all without exception glassy matrixes and valid in the widest concentration range of RE owing to minor influence of glass matrix on magneto-optical properties. The magnetic susceptibility for Tb 3+ ions exceeds the same option of Pr 3+ and Nd 3+ ions [25,27] causing higher values of the Verdet constant for Tb 3+ -containing glasses than that for Pr 3+ and Nd 3+ -containing ones at the same concentration of RE.…”

“…The correlations between the Verdet constant and ion concentrations obtained for Tb 3+ -doped borogermanate matrix, Nd 3+ -and Pr 3+ -doped silicate, phosphate and borate glasses [25], data connected with fluorine phosphate glasses [26,27] and industrial magneto-optical glasses [24,28,29] are shown in Fig. 4.…”

Ba3Tb(PO4)3: Crystal growth, structure, magnetic and magneto-optical properties

“…4f5d transition of RE 3+ ions [9]. Tb 3+ yields to the largest Faraday rotation, so that electric dipole contribution of Tb 3+ dominates even over that of Fe 3+ in magnetic terbium-iron garnet [10], and hence show the best magneto-optical properties [11,12].…”

Czochralski growth and Faraday rotation properties of Tb9.33(SiO4)6O2 crystals

“…Therefore, an intensive search for new magneto-optical crystals with similarly large Faraday rotation angle but a low optical absorption loss began and led to numerous new materials based on rare-earth (RE) garnet single crystals, which exhibit Curie-Weiss paramagnetic behavior, due to the 4f-4f5d transition of RE 3 þ ions [6]. Tb 3 þ yields to the largest Faraday rotation, so that electric dipole contribution of Tb 3 þ dominates even over that of Fe 3þ in magnetic terbium-iron garnet [7], and hence shows the best magneto-optical properties [8,9].…”