TY - JOUR T1 - Experimental evidence for the distinction between metastability and persistence in optical and electronic properties of bulk GaAs and AlGaAs JO - Brazilian Journal of Physics A1 - Pinheiro, M.V.B A1 - Krambroc, K. SN - 0103-9733 UL - 10.1590/S0103-97331999000400041 VL - 29 Y1 - 1999 PB - Brasil ER -