Asymmetric double barrier resonant tunneling structures with improved characteristics
arXiv:cond-mat/9810360 · doi:10.1016/S0038-1098(99)00072-1
Abstract
We present a self-consistent calculation, based on the global coherent tunnelling model, and show that structural asymmetry of double barrier resonant tunnelling structures significantly modifies the current-voltage characteristics compared to the symmetric structures. In particular, a suitably designed asymmetric structure can produce much larger peak current and absolute value of the negative differential conductivity than its commonly used symmetric counterpart.
1 paper, 3 figures