梯度凝固法晶体生长应用磁场的研究进展  

Progress in the Application of Magnetic Field in Crystal Growth by Gradient Solidification

作　　者：赵兴凯 韦华 叶晓达 王顺金 韩家贤 柳廷龙 Zhao Xingkai;Wei Hua;Ye Xiaoda;Wang Shunjin;Han Jiaxian;Liu Tinglong(Yunnan Xinyao Semiconductor Materials Co.,Ltd.,Kunming 650503,China)

机构地区：[1]云南鑫耀半导体材料有限公司,云南昆明650503

出　　处：《云南化工》2023年第4期15-20,共6页Yunnan Chemical Technology

摘　　要：在梯度凝固法晶体生长中应用磁场可以有效提高溶质分布的均匀性,改善生长界面的形貌。主要综述了在VGF法或VB法晶体生长中应用磁场的研究进展,包括行波磁场、旋转磁场和交变磁场的产生原理,以及三种磁场在熔体中形成的对流模式和对晶体生长的影响。提出了三种磁场各自的优势和在实际晶体生产上的应用前景。The application of magnetic field in crystal growth by gradient solidification can effectively improve the uniformity of solute distribution and improve the morphology of growth interface.In this paper,the research progress of the application of magnetic field in VGF or VB crystal growth is reviewed,including the generation principle of traveling wave magnetic field,rotating magnetic field and alternating magnetic field,as well as the convection mode of three kinds of magnetic fields in the melt and their influence on crystal growth.The advantages of the three kinds of magnetic fields and their application prospects in actual crystal production are discussed.

关 键 词：磁场垂直温度梯度 垂直布里奇曼 晶体生长 熔体对流 生长界面形貌 溶质分布 

分 类 号：TQ264.1[化学工程—有机化工]