K. Tanaka et al., Nonparabolic tendency of electron effective mass estimated by confined states in In0.53Ga0.47As/In(0.52)Al(0.48)AS multi-quantum-well structures, SUPERLATT M, 26(1), 1999, pp. 17-22
We observed that a series of peaks, which were clearly extracted from a pho
tocurrent difference spectrum, corresponded to interband optical transition
s of an In0.53Ga0.47As/In0.52Al0.48As multi-quantum wells structure. The no
nparabolic tendency of the electron effective mass was suggested from eigen
energies of conduction subbands, The effective mass estimated in a directio
n normal to the InGaAs quantum well plane was heavier than the effective ma
ss of the bulk band edge and was 0.07m(0) at the top of a quantum potential
well. (C) 1999 Academic Press.