Growth and characterization of magneto‐optical YFeO3 crystals
Growth and characterization of magneto‐optical YFeO3 crystals
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DOI：
10.1002/crat.200710972
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发表时间：
2007-10
影响因子：
1.5
通讯作者：
H. Shen;Jiayue Xu;Anhua Wu;J. Yu;Yan Liu;Liqing Luo
中科院分区：
文献类型：
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作者：
H. Shen;Jiayue Xu;Anhua Wu;J. Yu;Yan Liu;Liqing Luo
研究了磁光晶体YFeO 3的浮区法生长。采用250 MPa压力、1500 ℃左右烧结的方法制备了多晶喂料棒。成功地生长了无裂纹的YFeO 3单晶。晶体偏向于沿沿着方向结晶，偏离度约为10°。晶体的X射线摇摆曲线的FWHM为24弧秒，证实了样品的高晶体质量。（100）面被热磷酸蚀刻，位错密度约为104/cm 2。在生长态晶体的外围发现了一层富含Y2 O3成分的薄外层，这归因于生长过程中Fe 2 O3的蒸发。（© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA，魏因海姆）
The floating zone growth of magneto‐optical crystal YFeO3 has been investigated. The polycrystalline feed rod was prepared by a pressure of 250MPa and sintering at about 1500°C. A crack‐ free YFeO3 single crystal has been successfully grown. The crystal preferred to crystallize along direction with about 10° deviation. The X‐ray rocking curve of the crystal has a FWHM of 24 arcsec, confirming the high crystal quality of the sample. The (100) plane was etched by hot phosphoric acid and the dislocation density was about 104/cm2. A thin outer layer with Y2O3‐rich composition was found at the periphery of as‐grown crystals, which was attributed to the Fe2O3 evaporation during growth. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)