Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions

被引：22
作者：
Akamatsu, Hirofumi [1 ]
Fujita, Koji [1 ]
Nakatsuka, Yuko [1 ]
Mural, Shunsuke [1 ]
Tanaka, Katsuhisa [1 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan
来源：
OPTICAL MATERIALS | 2013年 / 35卷 / 11期
关键词：
Magneto-optical properties; Oxide glass; Magnetic interaction; DIVALENT EUROPIUM IONS; MAGNETIC-PROPERTIES; FARADAY-ROTATION; BORATE GLASSES; THIN-FILMS; LOCAL-STRUCTURE; RESONANCE; CRYSTAL; EUTIO3; OXIDES;
D O I：
10.1016/j.optmat.2012.10.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 Eu2+ 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 center dot 12.0Al(2)O(3)center dot 20.0B(2)O(3)center dot 10.0SiO(2) (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+ 4f(7) to 4f(6)5d(1) electronic transitions based on the Van Vleck-Hebb theory. (C) 2012 Elsevier B.V. All rights reserved:
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收藏
页码：1997 / 2000
页数：4
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