新型GYSGG(GdxY3-xSc2Ga3O12)晶体的生长、结构及透过光谱研究

doi:10.15541/jim20140002

无机材料学报 ›› 2014, Vol. 29 ›› Issue (10): 1077-1081.DOI: 10.15541/jim20140002 CSTR: 32189.14.10.15541/jim20140002

新型GYSGG(Gd_xY_3-_xSc₂Ga₃O₁₂)晶体的生长、结构及透过光谱研究

程毛杰¹, 孙敦陆¹, 罗建乔¹, 张会丽^1,2, 陈家康^1,2, 张庆礼¹, 殷绍唐¹

(1. 中国科学院安徽光学精密机械研究所, 安徽省光子器件与材料重点实验室, 合肥 230031; 2. 中国科学院大学, 北京 100039)

收稿日期:2014-01-03 修回日期:2014-02-28 出版日期:2014-10-20 网络出版日期:2014-09-22
作者简介:程毛杰(1982–), 男, 硕士, 工程师. E-mail: agcrystal@aiofm.ac.cn
基金资助:
国家自然科学基金(91122021, 51272254, 61205173, 51172236, 50932005)

Growth, Structure and Transmission Spectrum of A New Type GYSGG(Gd_xY_3-_xSc₂Ga₃O₁₂) Crystal

CHENG Mao-Jie¹, SUN Dun-Lu¹, LUO Jian-Qiao¹, ZHANG Hui-Li^1,2, CHEN Jia-Kang^1,2, ZHANG Qing-Li¹, YIN Shao-Tang¹

(1. The Key Laboratory of Photonic Devices and Materials, Anhui Province, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 2. University of Chinese Academy of Sciences, Beijing 100039, China)

Received:2014-01-03 Revised:2014-02-28 Published:2014-10-20 Online:2014-09-22
About author:CHENG Mao-Jie. E-mail: agcrystal@aiofm.ac.cn
Supported by:
National Natural Science Foundation of China(91122021, 51272254, 61205173, 51172236, 50932005)

摘要/Abstract

摘要：

采用提拉法成功生长出高质量的GYSGG(Gd_0.63Y_2.37Sc₂Ga₃O₁₂)晶体, 对其结构及透过光谱进行了研究。GYSGG晶体的晶格常数大于目前常用的GGG 和CaMgZr:GGG,介于YSGG与GSGG之间。可通过改变晶体中Gd与Y的比例, 获得应用中所需不同晶格常数的晶体基片。另外, 晶体三个结晶面的摇摆曲线有对称的形状和较小的半高宽, 表明晶体有较好的结晶完整性。观察分析了晶体三个结晶面的位错腐蚀图。透过光谱分析表明晶体有宽的透光波段, 将计算得到的折射率曲线拟合得到了折射率塞米尔方程系数。因此, GYSGG不仅是一种优良的激光基质晶体, 也是一种宽波段窗口材料和潜在的具有较大晶格常数, 并且晶格常数可调的新型磁泡应用衬底材料。

关键词: GYSGG晶体, 晶格常数, 摇摆曲线, 位错, 透过光谱

Abstract:

A new GYSGG (Gd_0.63Y_2.37Sc₂Ga₃O₁₂) crystal with high quality was successfully grown by Czochralski method. The structure and transmission spectrum were investigated. The lattice constant of GYSGG was larger than those of the currently used crystals GGG and CaMgZr:GGG, ranging in YSGG and GSGG. The crystal substrate with various lattice constants can be obtained for applications by adjusting the proportions of Gd and Y in the GYSGG crystal. Further, the rocking curves of three different crystalline faces exhibit symmetric shape and small full width at half maximum (FWHM), suggesting that the crystal has good crystalline integrity. The dislocation etching pits of three different crystalline faces were also investigated. The transmission spectrum indicates that the crystal has a wide band in transmission, from which the refractive index curve is calculated and sellmeier equation coefficients are fitted. Therefore, the GYSGG is not only an excellent laser host crystal, but also a window material with wide wave band, suggesting that it has potential applications as new magnetic bubble substrate with an adjustable and larger lattice constant.

Key words: GYSGG crystal, lattice constant, rocking curve, dislocation, transmission spectrum

中图分类号:

O786

程毛杰, 孙敦陆, 罗建乔, 张会丽, 陈家康, 张庆礼, 殷绍唐. 新型GYSGG(Gd_xY_3-_xSc₂Ga₃O₁₂)晶体的生长、结构及透过光谱研究[J]. 无机材料学报, 2014, 29(10): 1077-1081.

CHENG Mao-Jie, SUN Dun-Lu, LUO Jian-Qiao, ZHANG Hui-Li, CHEN Jia-Kang, ZHANG Qing-Li, YIN Shao-Tang. Growth, Structure and Transmission Spectrum of A New Type GYSGG(Gd_xY_3-_xSc₂Ga₃O₁₂) Crystal[J]. Journal of Inorganic Materials, 2014, 29(10): 1077-1081.

图/表 9

图1 生长的GYSGG(Gd0.63Y2.37Sc2Ga3O12)晶体

Fig. 1 As-grown GYSGG(Gd0.63Y2.37Sc2Ga3O12) crystal

图2 GYSGG与含镓石榴石晶体的X射线粉末衍射图谱

Fig. 2 X-ray powder diffractive patterns of GYSGG and other containing gallium garnet crystals

图3 GYSGG晶体结构示意图

Fig. 3 Structure schematic of the GYSGG crystal

表1 几种含镓石榴石晶体的晶格常数

Table 1 Lattice parameters of some containing gallium garnet crystals

Crystal	GGG	YSGG	CaMgZr:GGG	GYSGG	GSGG
Lattice constant /nm	1.2373	1.2426	1.2480	1.2507	1.2554
(444) diffractive angle (2θ)	51°7°	50º44°	50°43°	50°40°	50°22°

图4 GYSGG晶体三个不同结晶面的X射线摇摆曲线

Fig. 4 Rocking curves of GYSGG crystal at three different crystalline faces

图5 GYSGG晶体三个不同结晶面的位错腐蚀形貌

Fig. 5 Dislocation etch pits of GYSGG crystal at three different crystalline faces

图6 GYSGG晶体沿不同结晶方向观察的原子分布示意图

Fig. 6 Atomic arrangement schematics viewed at different crystalline directions for the GYSGG crystal

图7 GYSGG晶体的透过率曲线

Fig. 7 Transmission spectrum of GYSGG crystal Inset is the refractive index curve of GYSGG crystal

表2 GYSGG晶体的折射率塞米尔方程系数

Table 2 Sellmeier equation coefficients of refractive index of GYSGG crystal

A	B/μm²	C/μm²	D/μm²
3.49189	0.11634	0.07578	0.01498

参考文献 12

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新型GYSGG(Gd_xY_3-_xSc₂Ga₃O₁₂)晶体的生长、结构及透过光谱研究

Growth, Structure and Transmission Spectrum of A New Type GYSGG(Gd_xY_3-_xSc₂Ga₃O₁₂) Crystal

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