作者: Yoshihiro Sugiyama , Tsuguo Inata , Toshio Fujii , Yoshiaki Nakata , Shunichi Muto
DOI: 10.1143/JJAP.25.L648
关键词:
摘要: In0.52Ga0.48As/In0.52(Ga1-xAlx)0.48As/In0.52Ga0.48As potential barrier structures (x=0.25, 0.5, 0.75, 1), lattice-matched to InP, were grown by MBE using a pulsed molecular beam method. The conduction band edge discontinuity, ΔEc(x) between In0.52Ga0.48As and In0.52(Ga1-xAlx)0.48As, was obtained for the first time measuring current-voltage characteristics through structure as function of temperature in range 77–300 K. It confirmed that discontinuity varies linearly with Al composition, x, (ΔEc(x)=0.53x(eV) 0x1) is proportional gap difference, ΔEg(x), (ΔEc(x)=0.72ΔEg(x)(eV) 0x1).