Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions
Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions
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DOI：
10.1016/j.optmat.2012.10.029
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发表时间：
2013-09
影响因子：
3.9
通讯作者：
H. Akamatsu;K. Fujita;Yuko Nakatsuka;S. Murai;Katsuhisa Tanaka
中科院分区：
文献类型：
--
作者：
H. Akamatsu;K. Fujita;Yuko Nakatsuka;S. Murai;Katsuhisa Tanaka
研究了含高浓度二价Eu离子的铝硼硅酸盐玻璃的磁性、光学和磁光性质。对磁化率与温度关系的分析得到正的Weiss温度，表明Eu2+的4f电子的磁矩在玻璃中相互作用是铁磁的。玻璃在可见光范围内表现出较大的法拉第旋转角；玻璃成分为58.0EuO·12.0Al2O3·20.0B2O3·10.0SiO(摩尔%)，在633 nm处的费尔德常数为−1.03Gmin/Oe×cm(−300rad/T×m)。根据Van Vleck-Hebb理论，用Eu2+4f7到4f65d1电子跃迁解释了Verdet常数与波长的关系。
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 4felectrons 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·12.0Al2O3·20.0B2O3·10.0SiO2(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+4f7to 4f65d1electronic transitions based on the Van Vleck–Hebb theory.