SOLUBILITY CHARACTERISTICS OF GaAs IN Bi AND THEIR PHASE DIAGRAM
GaAs在Bi中的溶解特性及相平衡

A modified liquid phase epitaxy apparatus for semiconductor materialswas used to measure the solubility of GaAs in Bi. The solubility of GaAs in Biand two phase diagrams rich in Bi under H_2 and N_2 atmosphere were obtained. Anew phenomenon, in which the parameters Q value (quantity of GaAs dissolved inBi in fixed time but various temperatures/saturated quantity of GaAs in Bi) weredifferent from each other and there existed a maximum Q value in particular tem-perature, was observed. This phenomenon can be recognized as a common feature ofa simple binary metallic system which has the phase diagram similar to that of Bi-GaAs. The difference observed from the dependence of Q values on temperature inboth H_2 and N_2 atmosphere was discussed.