Composition Distribution in the MnxCd(1-x)In2Te4 Ingot Grown by ACRT-B Method
Composition Distribution in the Mn_xCd_(1-x)In_2Te_4 Ingot Grown by ACRT-B Method作者机构:Lab. of Solidification Proc. Northwestern Polytech. Univ. Xi'an 710072 China
出 版 物:《Journal of Materials Science & Technology》 (材料科学技术(英文版))
年 卷 期:2003年第19卷第6期
页 面:610-612页
核心收录:
学科分类:07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学]
主 题:MnxCd1-xIn2Te4 ACRT-B Composition distribution Partition ratio
摘 要:MnxCd1-xln2Te4 (x=0.1) ingot was successfully grown by the modified Bridgman technique, which applied the accelerated crucible rotation technique (ACRT) in Bridgman process, or briefly ACRT-B. The growth interface profile shape and the composition distribution in the MnxCd1-xln2Te4 (x=0.1) ingot were analyzed. Even though the stoichiometric composition was synthesized in the original ingot, the composition has been redistributed during the ACRT-B growth process. Mn and Cd contents decrease while In increases along the longitudinal axis. The partition ratios of solutes Mn, Cd and In at the growth interface are evaluated by a mathematical method based on the experimental data, which are found to be 1.286, 1.926 and 0.729 in α phase growth process, and 1.120, 1.055 and 0.985 in β phase growth process, respectively. In the radial direction, Mn and Cd contents increase while In decreases with the distance from the centerline of the ingot.