Pressure effect on parallel transport in low-dimensional CdTe/CdMgTe heterostructures

We have shown that in CdTe/Cd1-xMgxTe heterostructures revealing parallel t ransport, hydrostatic pressure induces a decrease in both 2D conduction in the quantum well and in low mobility parallel channel. This behaviour, cont rary to III-V heterostructures, is due to persistent decrease of the mobili ty. For samples having thick buffer layer the contribution of the parallel conduction is practically eliminated at high pressure with 2D conduction re maining dominant, while for samples with thin buffer layer the situation wi th pure 2D conduction is not achieved.