Adjustment method of ferromagnetic IV family type semiconductor, ferromagnetic III-V family type compound semiconductor or ferromagnetic II-VI family type compound semiconductor and the ferromagnetic quality

摘要

The ferromagnetic quality which is stabilized making use of IV family type semiconductor, the III-V family type compound semiconductor or the II-VI family type compound semiconductor which transmit light is obtained. In IV family type semiconductor, the III-V family type compound semiconductor or the II-VI family type compound semiconductor, Cc, a kind of is chosen from the group which consists of the rare earth metal of PR, ND, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu metal is contained at least. Ferromagnetic quality is adjusted and with the adjustment of these rare earth metal density, and the combination, p type of the metal of two types or more from these rare earth metal and the addition etc of the n type dopant.