Dynamical Faraday rotation properties of highly Tb2O3-concentrated borate glasses

Tomokatsu Hayakawa; Masayuki Nogami

doi:10.1117/12.517385

16 July 2003 Dynamical Faraday rotation properties of highly Tb₂O₃-concentrated borate glasses

Tomokatsu Hayakawa, Masayuki Nogami

Proceedings Volume 5061, International Symposium on Photonic Glass (ISPG 2002); (2003) https://doi.org/10.1117/12.517385
Event: International Symposium on Photonic Glass, 2002, Shanghai, China

Abstract

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.

Citation Download Citation

Tomokatsu Hayakawa and Masayuki Nogami "Dynamical Faraday rotation properties of highly Tb₂O₃-concentrated borate glasses", Proc. SPIE 5061, International Symposium on Photonic Glass (ISPG 2002), (16 July 2003); https://doi.org/10.1117/12.517385

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