Apparatus and method for synthesizing and continuously growing phosphide in magnetic field in immersion fashion

A device for immersed synthesis and growth of phosphides under a magnetic field, comprising a main furnace body, a crucible in the main furnace body, and heaters and thermal insulation layers surrounding the crucible, wherein the device for synthesis and growth further comprises an injection synthesis system connected to a driving device, the injection synthesis system carrying red phosphorus, and immersed into the crucible under an action of the driving device;

• wherein a static magnetic field generator is disposed outside the main furnace body;
• wherein the injection synthesis system comprises a cylindrical red phosphorus injector, and injection holes are formed at the periphery of the red phosphorus injector;
• wherein the injection synthesis system also comprises 3-5 disc-shaped shielding layers above the red phosphorus injector, a diameter of the shielding layers is 1 to 10 mm smaller than an inner diameter of the crucible, and the shielding layers are provided with through holes;
• wherein, according to positions of the shielding layers, the crucible is divided into different temperature areas, having temperature area ranges between every two shielding layers, above the shielding layer at the top, and below the shielding layer at the bottom;
• and each temperature area is provided with an independent heater and a thermocouple;
• wherein the red phosphorus injector and the shielding layers are connected to the driving device to ascend and descend simultaneously;
• wherein, in the thermal insulation layers surrounding the crucible, thermal insulation boards are disposed corresponding to the positions of the shielding layers;
• and
• wherein each of the shielding layers is provided with a thermometer hole at the same position to cooperate with a top thermocouple.