TY - JOUR
T1 - Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions
AU - Akamatsu, Hirofumi
AU - Fujita, Koji
AU - Nakatsuka, Yuko
AU - Murai, Shunsuke
AU - Tanaka, Katsuhisa
N1 - Funding Information:
The authors thank M. Tosaki and Y. Isozumi of Radioisotope Research Center, Kyoto University, for the Mössbauer effect measurements, and S. Tanabe of Kyoto University for the density measurements. This research was supported by Grants-in-Aid for Scientific Research (B) (No. 22360273) and Challenging Exploratory Research (No. 23655198) from MEXT and for JSPS Fellows (No. 22–1280) from JSPS.
PY - 2013/9
Y1 - 2013/9
N2 - Magnetic, optical, and magneto-optical properties have been examined for aluminoborosilicate glasses with high concentration of divalent europium ions. An analysis on temperature dependence of magnetic susceptibility yields positive Weiss temperatures, indicating that magnetic moments of 4f electrons of Eu 2+ interact ferromagnetically with each other in the glasses. The glasses show large Faraday rotation angles in the visible range; glass with a composition of 58.0EuO·12.0Al2O3·20.0B 2O3·10.0SiO2 (mol%) has a Verdet constant of -1.03 min/Oe cm (-300 rad/T m) at 633 nm. Wavelength dependence of the Verdet constant is interpreted in terms of Eu2+ 4f7 to 4f65d1 electronic transitions based on the Van Vleck-Hebb theory.
AB - Magnetic, optical, and magneto-optical properties have been examined for aluminoborosilicate glasses with high concentration of divalent europium ions. An analysis on temperature dependence of magnetic susceptibility yields positive Weiss temperatures, indicating that magnetic moments of 4f electrons of Eu 2+ interact ferromagnetically with each other in the glasses. The glasses show large Faraday rotation angles in the visible range; glass with a composition of 58.0EuO·12.0Al2O3·20.0B 2O3·10.0SiO2 (mol%) has a Verdet constant of -1.03 min/Oe cm (-300 rad/T m) at 633 nm. Wavelength dependence of the Verdet constant is interpreted in terms of Eu2+ 4f7 to 4f65d1 electronic transitions based on the Van Vleck-Hebb theory.
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U2 - 10.1016/j.optmat.2012.10.029
DO - 10.1016/j.optmat.2012.10.029
M3 - Article
AN - SCOPUS:84883812436
SN - 0925-3467
VL - 35
SP - 1997
EP - 2000
JO - Optical Materials
JF - Optical Materials
IS - 11
ER -