Abstract Historically, the melt growth of II-VI crystals has benefitted from the application of the accelerated crucible rotation technique (ACRT). Here, we employ a comprehensive numerical model to assess the impact of two ACRT schedules designed for a cadmium zinc telluride growth system per the classical recommendations of Capper and co-workers. The “flow maximizing” ACRT schedule, with higher rotation, effectively mixes the solutal field in the melt but does not reduce supercooling adjacent to the growth interface. The ACRT schedule derived for stable Ekman flow, with lower rotation, proves more effective in reducing supercooling and promoting stable growth. These counterintuitive results highlight the need for more comprehensive studies on the optimization of ACRT schedules for specific growth systems and for desired growth outcomes.

中文翻译：

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应用于碲化镉锌梯度冷冻生长的 ACRT 计划优化

摘要 从历史上看，II-VI 族晶体的熔体生长得益于坩埚加速旋转技术 (ACRT) 的应用。在这里，我们采用综合数值模型来评估根据 Capper 和同事的经典建议为碲化镉锌生长系统设计的两个 ACRT 计划的影响。“流动最大化”ACRT 计划，具有更高的旋转，有效地混合熔体中的溶质场，但不会减少生长界面附近的过冷。为稳定 Ekman 流导出的 ACRT 计划，旋转较低，证明在减少过冷和促进稳定增长方面更有效。这些违反直觉的结果强调需要对 ACRT 计划的优化进行更全面的研究，以针对特定的生长系统和所需的生长结果。