J. Walachova et al., PROBING OF INAS ALSB DOUBLE-BARRIER HETEROSTRUCTURES BY BALLISTIC-ELECTRON-EMISSION SPECTROSCOPY/, Applied physics letters, 70(26), 1997, pp. 3588-3590
InAs/AlSb resonant tunneling heterostructures have been studied by bal
listic electron emission spectroscopy. Current thresholds attributed t
o quasibound states in the quantum well and emission over the AlSb bar
riers are observed. The observed shape of thresholds is consistent wit
h inelastic processes in the InAs layers of the structures, where a hi
gh number of electron-hole pairs are generated. A threshold consistent
with the generation of electron-hole pairs in quantum well states is
observed. (C) 1997 American Institute of Physics.