Change of Microscopic Tunneling on a Macroscopic Time Scale: Current Surge Model
AIR FORCE RESEARCH LAB KIRTLAND AFB NMSPACE VEHICLES DIRECTORATE
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The Current Surge model is proposed to calculate the tunneling current in multiple quantum well structures in the presence of a slow time-dependent electric field. The microscopic origin of a zero-bias residual current observed and reported previously A. Singh and D. A. Cardimona, Opt. Eng. Bellingham 38, 1424 1999 is explored. The mystery of the observation of a microscopic tunneling change on a macroscopic time scale is uncovered, and the involvement of a very slow physical process is shown. Some new features, such as a current ripple, a current instability, a current hysteresis, and a current arch, are predicted and confirmed experimentally.
- Electricity and Magnetism
- Quantum Theory and Relativity
- Solid State Physics