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Proceedings Paper

Dynamical Faraday rotation properties of highly Tb2O3-concentrated borate glasses
Author(s): Tomokatsu Hayakawa; Masayuki Nogami
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Paper 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.

Paper Details

Date Published: 16 July 2003
PDF: 5 pages
Proc. SPIE 5061, International Symposium on Photonic Glass (ISPG 2002), (16 July 2003); doi: 10.1117/12.517385
Show Author Affiliations
Tomokatsu Hayakawa, Nagoya Institute of Technology (Japan)
Masayuki Nogami, Nagoya Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 5061:
International Symposium on Photonic Glass (ISPG 2002)
Congshan Zhu, Editor(s)

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