J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (06): 610-612.

• Research Articles • Previous Articles     Next Articles

Composition Distribution in the MnxCd(1-x)In2Te4 Ingot Grown by ACRT-B Method

Yongqin CHANG, Wanqi JIE, Xiping GUO, Fuyi CHEN, Weijun AN   

  1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-11-28 Published:2009-10-10
  • Contact: Wanqi JIE

Abstract: MnxCd(1-x)In2Te4 (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 MnxCd(1-x)In2Te4 (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.

Key words: MnxCd(1-x)In2Te4, ACRT-B, Composition distribution, Partition ratio