文章摘要
引用本文:桂训鹏,陶震,赵斌,陈建中,郭飞云.Na2Ce4(MoO4)7晶体的生长及磁光性能研究[J].福州大学学报(自然科学版),2018,46(6):
Na2Ce4(MoO4)7晶体的生长及磁光性能研究
Growth and magneto-optical properties of Na2Ce4(MoO4)7 crystal
投稿时间:2018-01-15  修订日期:2018-03-12
DOI:
中文关键词: 提拉法,稀土钼酸盐,磁各向异性,法拉第旋转
英文关键词: Czochralski method  Rare earth molybdate  Magnetic anisotropy  Faraday rotation
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
桂训鹏 福州大学石油化工学院 897020228@qq.com 
陶震 福州大学化学学院  
赵斌 福州大学化学学院  
陈建中 福州大学化学学院  
郭飞云 福州大学化学学院 gfylaser@sina.com 
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中文摘要:
      采用提拉法生长了Na2Ce4(MoO4)7晶体,通过XRD测试证实其为白钨矿结构,空间群I41/a。测试了晶体在400-1600nm波段的透射光谱,其在600-1600nm波段透过率较高,大约77-79%。晶体中Ce3+稳定存在,退火前后均未发生变价。不同方向磁化率的测定表明,Na2Ce4(MoO4)7晶体为顺磁性且存在明显的磁各向异性,其易磁化方向与光轴方向一致。采用消光法测试了晶体在635nm和1064nm处的法拉第旋转角,计算得到的费尔德常数分别为:-194.5rad/m·T和-58.5rad/m·T,约为TGG晶体的1.46倍。
英文摘要:
      Na2Ce4(MoO4)7 crystal has been grown by the Czochralski method. Structure refinement of XRD data confirms that the compound crystallizes in the tetragonal system I41/a. The transmission spectrum of the crystal in the 400-1600nm regions was measured, and the crystal exhibits a high transmittance in the 600-1600nm regions, about 77-79%. Ce3+ ions are stable in the crystal matrix, there is no valence change before and after annealing. The measurement of magnetic susceptibility in different directions shows that the Na2Ce4(MoO4)7 crystal is paramagnetic and has obvious magnetic anisotropy, its easy magnetization direction is consistent with the optical path. The Faraday rotation angle of the crystal at 635 nm and 1064 nm were measured by extinction method, the calculated Verdet constants are -194.5 rad / mT and -58.5 rad / mT, respectively, about 1.46 times the TGG crystals.
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