Artículos de revistas
Magneto-optical rotation of heavy-metal oxide glasses
Registro en:
Journal Of Non-crystalline Solids. Elsevier Science Bv, v. 231, n. 41671, n. 134, n. 142, 1998.
0022-3093
WOS:000074611500014
10.1016/S0022-3093(98)00408-6
Autor
Pedroso, CB
Munin, E
Villaverde, AB
Aranha, N
Reynoso, VCS
Barbosa, LC
Institución
Resumen
Magneto-optical rotation was measured at room temperature for glasses containing Bi2O3-CdO-GeO2 (BCG); and Bi2O3-PbO-GeO2-B2O3 (BPGP), A pulsed magnetic field between 50 and 80 KG was used to measure Faraday rotation at 632.8 nm as a function of the concentration of Bi and Cd for BCG and Bi and Pb for BPGB. Verdet constant as high as 0.162 min G(-1) cm(-1) at 632.8 nm for the BPGB sample with the highest concentrations of Bi and Cd was found. Verdet constant Increases linearly with the heavy-metal concentration for the BPGB whereas it reaches some saturation for the BCG system. Measurements of the magneto-optical rotation at other wavelengths in the visible and the refractive index at 632,8 nm are also reported. (C) 1998 Elsevier Science B.V. All rights reserved. 231 41671 134 142