Annular crucible and crystal transverse directional growth device and method thereof

The invention discloses an annular crucible, and a crystal transverse directional growth device and a method thereof. The annular crucible comprises an annular groove body and an annular top cover, the annular groove body and the annular top cover can be integrally manufactured or separately manufactured, and different areas for forming temperature difference are respectively arranged at the hollow part and the periphery of the annular crucible. According to the technical scheme disclosed by the invention, in the directional solidification process of the crystal melt, the transverse temperature gradient is formed by the high and low temperature areas at the middle hollow part and the periphery of the annular crucible, the temperature difference between the large and small areas of the temperature gradient and the temperature increasing and decreasing rate are controlled, related temperature debugging is carried out for the melt with different components, and the directional controllable growth of the crystal