GROWTH PROCESS AND PROPERTY ANALYSES OF GaMnSb GROWING ON BOARD OF SZ-3 SPACECRAFT

The GaMnSb sample was grown in Shenzhou-3 spacecraft (SZ-3) under microgravity conditions. The designed ampoule with the alumina felt used as the buffer between the ampoule and the ampoule crucible to overcome the enormous vibration, and was successfully recovered after the space growth of GaMnSb. It indicates that the design is practicable. X-ray energy spectra and X-ray diffraction were applied to analyse the structure property for the space-grown GaMnSb. The results reveal that the GaMnSb sample is polycrystalline. The main reasons are the temperature fluctuation and the energy shortage of the space crystal furnace. The energy shortage resulted in that the seed crystal was not melted, and that the GaMnSb was grown without seed crystal.