钆钪铝石榴石单晶缺陷的微观形貌与成因研究

人工晶体学报 ›› 2022, Vol. 51 ›› Issue (11): 1851-1857.

钆钪铝石榴石单晶缺陷的微观形貌与成因研究

王贝贝¹, 刘文鹏^2,3, 任浩¹, 张传成¹, 刘海莲¹, 邹勇¹, 丁守军^1,2,3

1.安徽工业大学数理科学与工程学院,马鞍山 243032;
2.先进激光技术安徽省实验室,合肥 230037;
3.中国科学院合肥物质科学研究院安徽光学精密机械研究所,合肥 230026

收稿日期:2022-07-27 出版日期:2022-11-15 发布日期:2022-12-07
通讯作者: 刘海莲,博士,副教授。E-mail:liuhl@ahut.edu.cn；丁守军,博士,副教授。E-mail:sjding@ahut.edu.cn
作者简介:王贝贝(2000—),女,安徽省人,研究助理。E-mail:wangbb060821@163.com
基金资助:
先进激光技术安徽省实验室开放研究基金(AHL2021KF07);安徽省科技重大专项(202203a05020002);安徽省高校自然科学基金(KJ2021A0388);安徽省高校研究生科学研究项目(YSJ20210361);安徽省自然科学基金(2008085QF313)

Morphologies and Formation Mechanisms of the Defects in Gadolinium-Scandium-Aluminum Garnet Single Crystal

WANG Beibei¹, LIU Wenpeng^2,3, REN Hao¹, ZHANG Chuancheng¹, LIU Hailian¹, ZOU Yong¹, DING Shoujun^1,2,3

1. School of Science and Engineering of Mathematics and Physics, Anhui University of Technology, Maanshan 243032, China;
2. Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China;
3. Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230026, China

Received:2022-07-27 Online:2022-11-15 Published:2022-12-07

摘要/Abstract

摘要： 采用提拉法生长了2%Dy³⁺和1%Tb³⁺(原子数分数)共掺的钆钪铝石榴石激光晶体(Gd₃Sc₂Al₃O₁₂, GSAG)。研究了晶体(111)晶面的腐蚀缺陷形貌并对缺陷形成机理进行了解释,讨论了晶体缺陷的特征形貌与晶体结构之间的关系。表征并计算了晶体(111)晶面的维氏硬度和莫氏硬度,在0.2 kgf载荷和10 s保荷时间条件下,晶体(111)面的维氏硬度为1 267 kg/mm²,对应的莫氏硬度为7.3。研究结果对揭示混晶石榴石晶体中缺陷的成因和探索高品质晶体生长与加工工艺具有一定的参考价值。

关键词: 钆钪铝石榴石晶体, 提拉法, 激光晶体, 共掺, 缺陷形貌, 维氏硬度

Abstract: A gadolinium-scandium-aluminum garnet single crystal (Gd₃Sc₂Al₃O₁₂, GSAG) co-doped with 2%Dy³⁺ and 1% Tb³⁺ (atomic number fraction) was grown by Czochralski method. The morphology of etched defect on the crystal surface of (111) plane was studied and the mechanism for the formation of the defects was discussed. Besides, the Vickers hardness and Mohs hardness of the (111) plane were also characterized and calculated. On the condition of 0.2 kgf loading and 10 s keeping time, the Vickers hardness for the (111) plane is 1 267 kg/mm², corresponding to the Mohs hardness of 7.3. The results have reference value for revealing the origin of defects in mixed garnet crystals and exploring the growth technics for high quality crystals.

Key words: Gd₃Sc₂Al₃O₁₂, Czochralski method, laser crystal, co-doping, defect morphology, Vickers hardness

中图分类号:

O77⁺1

王贝贝, 刘文鹏, 任浩, 张传成, 刘海莲, 邹勇, 丁守军. 钆钪铝石榴石单晶缺陷的微观形貌与成因研究[J]. 人工晶体学报, 2022, 51(11): 1851-1857.

WANG Beibei, LIU Wenpeng, REN Hao, ZHANG Chuancheng, LIU Hailian, ZOU Yong, DING Shoujun. Morphologies and Formation Mechanisms of the Defects in Gadolinium-Scandium-Aluminum Garnet Single Crystal[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(11): 1851-1857.

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