Conduction of electrons through the quantum wells of a Landau level-quantised superlattice in the Wannier-Stark regime is investigated. We observe features in the current–voltage characteristics which arise from quasi-elastic processes in which electrons tunnel (hop) across as many as four superlattice periods. These transitions occur with a change of Landau level index and are observed together with the previously-studied nearest-neighbour well transitions. We investigate the temperature dependence of these processes.
|Number of pages||4|
|Journal||Physica Status Solidi B-Basic Solid State Physics|
|Publication status||Published - Nov 1997|
Nogaret, A., Eaves, L., main, P., Henini, M., Maude, D. K., & Portal, J-C. (1997). Transitions between Wannier-Stark states of a superlattice at high magnetic field. Physica Status Solidi B-Basic Solid State Physics, 204(1), 374-377. https://doi.org/10.1002/1521-3951(199711)204:1<374::AID-PSSB374>3.0.CO;2-N