美国伊利诺州立Ｕｒｂａｎａ Ｃｈａｍｐａｉｇｎ大学的ＪｏｈｎＷａｌｋｅｒ教授及其同事们在研究锗和硅的几个合金的晶体成长实验时 ,发现了磁场对其晶体成长过程的明显效果。锗硅合金是很有发展前途的热电材料和光电材料 ,但在其晶体成长过程中由于锗的质量大约为硅的 3倍之 Professor John Walker and his colleagues at Urbana Champaign University in Illinois, USA, studied the crystal growth experiments of several alloys of germanium and silicon and found the obvious effect of the magnetic field on their crystal growth. Ge-Si alloys are very promising thermoelectric materials and optoelectronic materials, but due to the quality of germanium in the crystal growth process is about three times that of silicon