PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
Dynamical Faraday rotation measurements with pulsed magnetic fields up to ~16 T have been carried out to investigate magnetic interactions between Tb3+ ions in highly Tb2O3-concentrated borate glasses (25-40mol%). These glasses were completely paramagnetic around room temperature, while a cooling down below 100 K began to produce antiferro-couplings of magnetic moments (J = 6) of Tb3+ ions in local areas of the glasses due to the superexchange interactions via oxygen atoms. The modification of the magnetic structure by doping with divalent manganese ions increased the magnetic correlation temperature. It will be also given that a novel glass matrix of 5B2O3-3Ga2O3-3SiO2-P2O5 has been developed in order to increase Tb2O3 content up to 40 mol.% in glasses.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.