M. Gryglas et al., Hydrostatic pressure investigations of resonant tunnelling through X-minimum-related states in a single barrier GaAs/AlAs/GaAs heterostructure, HIGH PR RES, 18(1-6), 2000, pp. 63-67
We have investigated the resonant tunnelling of electrons through X-valley
related states in a single AlAs barrier with Si donor delta -doping. Under
high hydrostatic pressure all the peaks observed in the differential conduc
tance-voltage (sigma- V) characteristics shift with a pressure rate of -15
meV/kbar, which is expected for X-minima related electronic states.